I don't think this deserves its own top level discussion post and I suspect most of the downvotes are for this reason. Maybe use the open thread next time?
I downvoted because one of the chiefly repeated themes of the sequences and LW is that rationality is about winning, not about following your preconceptions about what logic means to your defeat, nor about making excuses.
It's insulting and rather ignorant that summerstay associated LW with the type of person Munroe was mocking. That type of person is pretty much the opposite of what LW is about.
I think we could apply the lessons, anyway, but Munroe might have our community in mind specifically. The alt-text refers to emotional biases. I'm just curious if others got the same impression.
http://xkcd.com/1112/