A bunch of profanity laced name calling, derision, and even some blame directly at the user base. It feels like a Reddit shitpost. Your claim is as generalized and un-scientific as mine, but if it makes you feel better, I'll say it _feels_ like this wouldn't fly even a couple years ago.
It's just been said for so long that either HN always been on the decline, or people have always thought it been in decline...
This comes to mind:
> I don't think it's changed much. I think perceptions of the kind you're describing (HN is turning into reddit, comments are getting worse, etc.) are more a statement about the perceiver than about HN itself, which to me seems same-as-it-ever-was. I don't know, however.