To me, the divide Twitter/Bluesky is the divide between terminally only idiots and terminally online simpletons (you decide which is which). Decent people are on neither.
I don't know how HN has remained as chill as it has compared to other social media platforms, but I'm grateful. I can still have deep conversations here without people losing their minds and yelling expletives and death threats. It feels a lot like forums or Reddit back in the 2000s.