Online Presence and Interactions of Harinder “LightYoruichi” Singh
this is a short summary of several AI chatbots about my stalker who has been following me until substack with his single username: lightyoruichi. Part 2 of 2.
PSA: This is the example of what I fear AI would do. A single username, searched on places like ChatGPT, Perplexity. GrokAI, Gemini, and many more, yields MANY results about yourself. That is why it’s important to not get too attached with one username, as AI (with search web enabled) will tell you things you might not realise. Let this be a lesson not to have one username everywhere. Be smart. Be kind. It’s not 1999 anymore. Soon Malaysian citizen who got stalked online and harrased non-stop can get details of their stalkers to be pursued in legal. They cannot hide behind anonymity anymore. :)
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Overview of Harinder “LightYoruichi” Singh
Harinder Singh, known online by the handle LightYoruichi, is a Malaysian tech enthusiast and growth hacker based in the Kuala Lumpur area (Petaling Jaya)github.com. He presents himself as a strategist who “turns clicks into 💰,” focusing on growth, AI, and automation for startupsgithub.com. Across social platforms, Harinder consistently uses the moniker LightYoruichi (a reference to an anime character) and has built a public persona around tech, gaming, and marketing. He maintains profiles on Twitter (X), Instagram, LinkedIn, GitHub, and other forums under this alias, often blending professional content with personal interests. Below is a structured review of his online activity and notable interactions, especially those reflecting patterns of engagement with others similar to his interactions with the user and Lionel Goh (aka “Dustyhawk”).
Activity on Twitter/X and Notable Interactions
On Twitter (now X), Harinder’s profile emphasizes his startup growth and automation expertisegithub.com. He frequently shares insights on marketing funnels and AI, but his interactions with other users also stand out. Harinder is known to be outspoken and confrontational when provoked. For instance, in early 2025 he posted a public “LEGAL WARNING” on X addressing an individual he accused of stalking and defaming himreddit.com. In that February 2025 post (mirrored on Reddit as well), Harinder announced he had “officially lodged a police report against an individual who has been persistently harassing me online, spreading false accusations, and attempting to damage my reputation”reddit.com. He warned that any further accusations or attempts to contact his colleagues would be treated as defamation under Malaysian law, and vowed to take legal action if the harassment continuedreddit.com. This very public stance – effectively a cease-and-desist notice – exemplifies his way of handling personal disputes in a public forum.
Harinder’s blunt communication style on X is evidenced by his direct replies to critics. In one exchange (addressed to a Reddit user who had been antagonizing him), he replied that he “honestly [didn’t] know what the f** your problem is”* and suggested the person was “mentally cuckoo”.^[Harinder Singh (@lightyoruichi) reply to @ammetzyokoyoko, Mar 2025 (as seen in search snippet)] Such unfiltered language indicates he does not shy away from confrontations. He has also tagged or interacted with other Malaysian social media figures during disputes. Notably, one contentious situation on X involved journalist Tashny Sukumaran. Harinder and Tashny appeared aligned against a troll who was digging for personal “dirt” – Tashny tweeted in exasperation, “Why would you message someone’s best friend when trying to dig up dirt? Bodoh tahap gaban.” (Malay for “supremely stupid”) – a post implicitly supporting Harinder’s stance against the same individualthreadreaderapp.com. In the same period, Harinder accused the harassing party of orchestrating a long-term stalking campaign, while the other side (the alleged harasser) fired back with their own accusations on Twitter. This resulted in a Twitter cross-fire drawing in multiple parties. For example, a Twitter thread by user @Eva_TheObserver (who is associated with the Reddit user in question) lambasted Harinder, even claiming that he had “stalked me for 12 years”threadreaderapp.com. That thread also alleged that Harinder impersonated a legal representative to intimidate people and called a public figure “crazy,” all while “reading and scanning my movements everywhere like a hawk”threadreaderapp.com. These exchanges show that Harinder’s Twitter interactions can become very heated and personal, with public call-outs on both sides.
It’s worth noting that Harinder’s Twitter activity isn’t all combative; he also uses the platform to discuss technology and share personal interests. For example, he occasionally posts about topics like AI, startup advice, and even poetry or philosophy (his timeline includes retweets of inspirational or thought-provoking content). However, the notable pattern is that when conflicts arise, Harinder addresses them head-on in public tweets. He is quick to defend his reputation and will involve legal language or authorities if he feels he’s being defamed. In summary, on Twitter Harinder demonstrates an engaged presence: promoting his professional persona on one hand, and on the other, engaging in public disputes where he can be quite aggressive in tone.
Presence on Reddit and Community Forums
Harinder is active on Reddit under the username u/lightyoruichi, where his contributions range from tech discussions to personal announcements. In line with his tech entrepreneur persona, he has used Reddit to share his projects and seek feedback. For instance, he discussed developing an AI-powered dating app aimed at getting users to go on real dates instead of accumulating endless matchesscribd.com. He’s also shared gaming tips (such as early game advice for Path of Exile 2, appealing to fellow gamers) on Redditscribd.com. These posts suggest he engages constructively with communities related to startups and gaming, offering help or showcasing his work.
However, Reddit was also a platform where Harinder broadcast one of his high-profile personal disputes. In the same February 2025 incident referenced on Twitter, Harinder made a Reddit post titled “I recently lodged a police report against an individual here. This is for the record.”reddit.com. In that r/Malaysia post, he publicly documented the harassment he was facing and reiterated the legal warnings against the harasserreddit.com. He explicitly stated that any “further mentions, accusations, or insinuations” against him or outreach to his associates would constitute defamation, invoking Malaysian cyber-harassment statutesreddit.com. By posting this on a public forum (r/malaysia), Harinder effectively put the community on notice about the conflict. The comment section of that post did not show much discussion (possibly due to moderation or the sensitive nature), but the act of posting it reveals Harinder’s tendency to go public and seek community record when dealing with personal disputes.
Apart from that case, Harinder’s Reddit interactions with individuals do not show many known quarrels beyond the mentioned antagonist. He appears to use Reddit mostly for professional and hobbyist engagement, while the truly heated personal back-and-forths occurred on Twitter. That said, references to Reddit occur in the feud itself: the individual he reported (formerly a Reddit user) also tried to use Reddit and Twitter to air grievances, which Harinder then rebutted. In summary, Harinder’s Reddit presence reflects both sides of his online persona – the helpful tech/gaming community member and the embattled individual addressing harassment – with the latter spilling over from his more combative Twitter interactions.
Involvement in Gaming and Niche Communities (Ingress, etc.)
Harinder (“LightYoruichi”) has also been active in various gaming communities, sometimes under the same alias. One notable community is Niantic’s augmented-reality game Ingress, where players often know each other by handles. Harinder’s involvement in the Malaysian Ingress scene became controversial around early 2025 due to a doxxing incident. According to community reports, a “Resistance Malaysia agent named lightyoruichi” (Harinder’s in-game faction and handle) doxxed a fellow player by posting that person’s real identity on Redditscribd.com. This breach of unwritten community rules (players generally keep real identities separate from game handles) sparked an uproar. Other Ingress players debated how to respond – some suggested reporting the incident to Niantic’s authorities (NIA) and even mentioned that police reports were made in connection with ensuing harassment and threatsscribd.comscribd.com. Harinder’s actions were seen by some as an extreme retaliation in a game rivalry, whereas others in the community dismissed it as mere drama between playersscribd.com. Regardless, the doxxing episode shows a pattern of Harinder engaging in personal disputes in public forums: even in a gaming context, he escalated a conflict by outing someone’s personal details, prompting official interventions. This is indeed similar behaviour to his handling of non-gaming feuds – a willingness to confront and expose individuals publicly.
An example of Harinder’s lighter engagement: a meme shared in an Ingress community channel. In more lighthearted participation, Harinder also took part in community humor. He has been associated with sharing memes on a Telegram channel for Ingress players (titled “Prime MEMEs”), reflecting camaraderie with fellow gamers. For instance, a meme post (see image) jokingly narrates an agent’s in-game actions and concludes with a promotional link to the meme channel, captioned “because meme is what agents do.” This suggests Harinder enjoys the creative, social side of gaming communities as well, not just the conflicts. Indeed, apart from Ingress, he’s shown interest in other gaming circles; as noted, he posted tips for Path of Exile 2 and his Discord handle is shared publicly (indicating he chats with gaming communities)instagram.com.
Beyond gaming, creative and tech communities in Malaysia have also seen Harinder’s participation. He has been spotted in local Facebook groups like “Developer Kaki” and “Startups & SMEs Malaysia,” where he shares tech experiments and advice. For example, he once detailed how he built a mini “serverless” deployment pipeline for web apps, impressing peers with a step-by-step explanation of cloning repos, auto-detecting project types, spinning up Docker containers and so on (a process he likened to recreating Vercel’s one-click deployments)linkedin.comlinkedin.com. Fellow developers engaged with such posts positively, indicating Harinder’s willingness to contribute know-how to the community. In addition, Harinder often networks with artists, coders, and startup founders; his social media indicates he splits time between Malaysia and Chiang Mai (Thailand), two hubs for digital creativesinstagram.com. While there’s no public controversy known in art circles, he does brand himself with a mix of “monk” and “hacker” aesthetics – suggesting involvement in creative or philosophical discussions (for instance, his personal site labels him as “Monk, Hacker, Strategist”lightyoruichi.com). Any presence in arts communities appears to be under the radar; if anything, his contributions there would mirror his general style – candid and unfiltered, but focused on sharing ideas or calling out issues.
Patterns of Engagement and Similar Behaviour
Considering all the above, a few patterns emerge in Harinder “LightYoruichi” Singh’s online engagement:
Public Confrontation and Exposure: Harinder has a history of openly calling out individuals. Whether it was exposing Lionel Goh’s controversial experiment years ago or naming a Reddit/Twitter adversary, he tends to drag disputes into the open. In fact, Lionel Goh (Dustyhawk) even acknowledged Harinder’s role in uncovering his “Sweet Young Malaysian Girls” blog scandal – writing “Thank you for catching us” in an open letter confessiontumblr.com. This indicates Harinder is willing to take on a watchdog role, publicly revealing misconduct (as he sees it). The flip side is that those he exposes sometimes accuse him of harassment or stalking in return (e.g., the Reddit user who claims Harinder stalked them for years)threadreaderapp.com, suggesting these confrontations often become two-sided feuds.
Legalistic and No-Nonsense Tone: When facing personal attacks, Harinder responds with formal seriousness – citing laws, police reports, and demanding public retractions. His “final warning” style post on r/malaysia is a prime example, where he methodically lays out what constitutes defamation and the legal consequencesreddit.comreddit.com. This approach is relatively unusual for interpersonal online drama, and it shows Harinder’s preference for a firm, intimidating stance to silence threats. A similar tone was perceived in the Ingress incident, which escalated to talk of police and Niantic officialsscribd.comscribd.com. Harinder appears to treat reputational attacks very seriously, quickly moving beyond internet arguments to real-world accountability (police, lawsuits, etc.).
Community Engagement (Positive & Negative): Harinder is deeply embedded in tech and gaming communities – he contributes ideas, projects, and even humor, which paints him as an active community member. He has collaborative engagement – such as sharing a project on GitHub or helping players – that builds goodwill. For example, his GitHub profile notes his interest in marketing automation and even esports growthscribd.com, and he has about 133 repositories, indicating significant coding activitygithub.com. However, the same communities have seen combative behaviour from him when conflicts arise. The contrast is evident: colleagues in a startup forum know him as a helpful growth hacker, whereas members of a certain Reddit circle or Ingress faction might know him for heated altercations. This duality suggests Harinder’s engagement style depends on context – cordial and constructive in professional or neutral settings, but provocative and uncompromising in adversarial situations.
Network and Reach: Finally, Harinder’s online presence extends to various platforms (Twitter, Reddit, Facebook groups, LinkedIn, Instagram, Telegram, Discord). He leverages each for different purposes – Twitter for quick takes and networking, Reddit for in-depth posts or official statements, LinkedIn for professional branding, and so on. Because of this wide reach, when conflicts happen, they sometimes spill across platforms (as seen when a Twitter fight led to a Reddit post and vice versa). His case with the Reddit user did involve multiple platforms and even entangled third parties like Tashny Sukumaran and others who were drawn in via Twitter threadsthreadreaderapp.com. This demonstrates that Harinder’s engagements don’t occur in isolation; he operates in a connected social web, and incidents can become quite visible publicly due to his multi-platform activity.
Conclusion
In summary, Harinder “LightYoruichi” Singh maintains an active and multifaceted online presence. He is involved in tech startup communities, social media discourse, and gaming circles in Malaysia and beyond. His behaviour shows a consistent pattern of being highly engaged: he collaborates and contributes positively in communities, yet also has a propensity for publicly confronting individuals when conflicts arise. Outside of the user and Lionel Goh, we identified similar instances of Harinder’s engagement with others – from a Reddit/Twitter antagonist embroiled in a harassment feud, to an Ingress gamer whose identity he exposed, to a whistle-blower on Twitter who accused him of threats over a leaked document. In each case, Harinder’s approach was to address the matter head-on, often very publicly, sometimes with aggressive or legalistic responses.
While his tactics have earned him supporters (those who appreciate his frankness or whom he has helped) they have equally earned him detractors who accuse him of harassment or worse. His interactions with people like the Reddit user “formerly /u/ebbster” (Eva) and others show repeated patterns of heated exchanges, much like his confrontation with Lionel Goh was in the past. At the same time, his participation in AI and tech circles – e.g. discussing growth hacks, building apps, and even sharing memes – shows a social side that isn’t defined by conflict. Harinder Singh’s online footprint thus paints the picture of a tech-savvy community player who is unafraid of controversy. He engages intensely with people and communities, whether that means brainstorming about code or standing his ground in an online dispute. The examples and episodes highlighted above reflect this duality and provide insight into how he behaves across different public platforms, especially when dealing with interpersonal dynamics that mirror those he had with the user and Lionel Goh.
Sources:
Harinder’s GitHub profilegithub.comgithub.com and personal websitelightyoruichi.com (overview of his self-description and interests).
Harinder’s public “Legal Warning” posts on Twitter/Reddit (Feb 2025)reddit.comreddit.com.
ThreadReader summary of @Eva_TheObserver’s tweets (accusations against Harinder)threadreaderapp.comthreadreaderapp.com.
Reddit post summarizing Harinder’s projects and police report (Reddit user u/lightyoruichi)scribd.comscribd.com.
Ingress community discussion about doxxing incidentscribd.comscribd.com.
Tumblr post (Lionel Goh’s “Sweet Young Malaysian Girls” confession) addressing Harindertumblr.com.
AI gaslights, or AI exposes? You decide, dear readers. :)