I call it the redditification of HN. The trend has been massively increased with Corona, and now post AI it's essentially the norm.
People can't even discuss about any politics anymore.
Back in Obama's days there were always interesting discussions in the political threads and they were rarely insta flagged. And it was mostly nuances wrt business needs and what that means for our societies. The PRISM news also frequently got heated, and still stayed somewhat technical.
Extremely noticable compared to the platform it is today.
Tbf though, HN always had a few topics it was extremely irrational about.
Eg Apple since the start and Musk post 2012...