I increasingly feel the same about the comment quality of HN in recent years.
There are three topics that inevitably get injected into every discussion: AI, politics, and nostalgia. The thing is, I don't understand the goal. This isn't reddit. Few people on here are that broke, uneducated, or impressionable. This site is also deliberately designed to not reward any interaction.
HN has definitely experienced a marked decline in quality over the last 15 years, (since the account I am currently posting from has existed,) I know this sort of remark is discouraged by the guidelines, but the trend is substantial enough that it cannot be ignored. I don't think users have any specific goal, but they are indeed posting the same inane drivel and joke comments as Reddit, notably including the classic (and idiotic) 'I mis-read/misunderstood the submission title X as Y hahah'.
Well, foo. My comment about President Facade torpedoed before it set sail.