Oh I’m aware different subreddits have different cultures, but doxxing and mob behavior emerge from any large enough online anonymous crowd. Humans at scale are petty and vindictive. HN even has to have rules about it because it’s been a problem here even when the site was much smaller.

Any particular subreddit will have a specific ideological soft spot that a dedicated marketer will be able to identify and craft turf to exploit. It’s a fundamental flaw to anonymity.