Look at the list of top contributors, is all that they have done supposed to be forsaken over some minor 'blemish'? Who cares. Some guy just got banned randomly. What about people who get hell-banned here? What about the guy who is creating that christian operating system that can communicate with god who is obviously insane? Is banning him a smear against the mods? No relax, look at the sum of good in the totality, not in the minor.
I'm making a general point here rather than one about Yudlowski and co. I'm rather a hard-core utilitarian myself but I can't really get into LessWrong - seems too cliquish and I would end up engaged in fruitless arguments.
It's just not possible to be so completely rational all the time. Cut some guy a break. Come on.