You're both wrong :). There is no "Reddit culture"; on Reddit, culture is scoped to a subreddit. You and GP are likely hanging out on different kinds of subreddits - but if your experience is that of "an internet mob with famous examples of false accusations, doxxing and harassment", I strongly suggest you rethink which subreddits you follow. Yes, they probably need a different type of marketing, but they're probably also not worth it for technical products.
> Being cynical and anti-business is not about “getting to the facts”.
It's hard to tell, because cynicism and healthy realism overlap nearly 100% when it comes to modern business.