Discussion on this site has little to do with Y Combinator. You see people railing against big tech billionaires every day here.

Bluesky is pretty close to being fellow travelers for the userbase here. If you do a comment search for "bluesky" you can see most comments are neutral or positive. HN might be a bit more genteel in how they discuss things, but there are many users here whose politics are pretty similar to what you find on bluesky.