It's complicated.
It's basically a forum created to venerate the works and ideas of that guy who in the first wave of LLM hype had an editorial published in TIME where he called for a worldwide moratorium on AI research and GPU sales to be enforced with unilateral airstrikes, and whose core audience got there by being groomed by one the most obnoxious Harry Potter fanfictions ever written, by said guy.
Their function these days tends to be to provide an ideological backbone of bad scifi justifications to deregulation and the billionaire takeover of the state, which among other things has made them hugely influential in the AI space.
They are also communicating vessels with Effective Altruism.
If this piques your interest check the links on the sidecard.
There's also a whole thing with Yud accepting the many worlds interpretation as obvious truth that leads to (some) rationalists believing that getting killed in one timeline helps your surviving parallel selves by bolstering your case of being unblackmailable by said hypothetical agents, who are also from the future, which is why you can't negotiate with them directly.