I'll bite. I go to LessWrong, ACX, and sometimes EA meetups. Why? Mainly because it's like the HackerNews comment section but in person.

I have never donated to EA. I choose instead to donate to https://www.gatesphilanthropypartners.org, which has very similar ideals and approaches and is arguably more effective, a debate which I have openly had with many EA proponents, and to the detriment of none!

At least in Austin, AI doomers only make up a smaller chunk than the rest of the people who show up. I'd say the overriding mentality is skepticism and curiosity. The range in political opinion is very large. There's no dominating ideology and every statement will result in someone who politely disagrees!

And yes, LW, ACX, and EA are all very intermingled, so make of that what you will!