Thanks for letting me know. I've not heard of these things before... so I looked them up briefly and stopped reading once I encountered that this was used as a recruiting tool and written by Yudowsky:
https://en.wikipedia.org/wiki/Harry_Potter_and_the_Methods_of_Rationality
I don't think I got smarter here. Might have lost a few brain cells. I was going to ask if this is an empericist/positivist group but that might be giving them too much credit, it looks like reactionary book club (even that might be too much credit) with the focus here being AI? They claim to stand for "AI safety" but I am very much getting "environmentalism without class struggle" vibes.