Yudkowsky tells other people to get laid. He is asking the community to downvote certain people. He is calling people permanent idiots.

He is a forum moderator. He asks people for money. He wants to create the core of the future machine dictator that is supposed to rule the universe.

Given the above, I believe that remarks about his personality are warranted, and not attacks, if they are backed up by evidence (which I provided in other comments above).

But note that in my initial comment, which got this discussion started, I merely uttered a guess on why Yudowsky might now prefer Facebook over LessWrong. Then a comment forced me to escalate this by providing further justification for uttering this guess. Your comments further forced me to explain myself. Which resulted in a whole thread about Yudkowsky's personality.