Last time I was very suspicious about the discussion, was here: https://news.ycombinator.com/item?id=45809866 Lots of comments from new-ish accounts.
https://news.ycombinator.com/threads?id=alan-jordan13 This one has been shadowbanned, for another example.
But to have an account that just automatically replies with obvious LLM answers? I don't see a point to that is what I'm saying.