I think that the "group attribution error"[1]/"goomba fallacy"[2] are what's going on - someone will sample ~10 comments out of a thread of 500 on a site with tens of thousands of users and assume that those 10 comments are representative of the thread or all of HN.

(and a different person will do a similar sampling technique but come away with the opposite conclusion, that HN is super pro-AI)

This is why neglecting statistics in favor of vibes is a bad idea.

[1] https://news.ycombinator.com/item?id=48035600

[2] https://news.ycombinator.com/item?id=48035860