One PR problem is that the list may come across as an attempt to shame people out of their ideas (as opposed to an instructive list of examples of failure modes), and so people seeing the list may mistakenly infer that LessWrong thinks it has enough social clout to make famous thinkers fear its disapproval, and hence that LessWrong has delusions of grandeur. "Irrationalists" seems like a bad thing to title the page in this context.