http://www.urticator.net/essay/0/48.html
Might be a useful read apropos of Wei Dai's recent question:
Why are we causing [people] to think of LW in terms of identity in the first place, instead of, say, a place to learn about and discuss some interesting ideas?
"Rationalist" or "someone who overcomes biases" seems to be a smaller identity than "part of LW" (as the latter tends to be construed, by SamLL for example, as including beliefs that are merely popular around here instead of having to do with rationality). If we can't (or it would be counterproductive to) avoid adopting the former identity, it should still be possible (or sensible) to avoid adopting the latter identity.