I note that as a community we don't seem especially prone to strongly identifying with world or national politics in the patriotic tribal sense. That kind of politics is far closer to mere abstract theory. The real political infighting lesswrong is vulnerable to tends to be moral and local. (And vulnerable it is.)
I agree that there probably isn't that much tribal patriotism here, but there are probably a few posters whose minds are tainted by ideology (libertarianism, left-liberalism, environmentalism, maybe conservatism) (I don't consider my mind untainted by ideology), which can be equally polarizing.
Are there any areas of study that you feel are underrepresented here, and would be interesting and useful to lesswrongers?
I feel some topics are getting old (Omega, drama about moderation policy, a newcomer telling us our lack of admiration for his ideas is proof of groupthink, Friendly AI, Cryonics, Epistemic vs. Instrumental Rationality, lamenting how we're a bunch of self-centered nerds, etc. ...), and with a bit of luck, we might have some lurkers that are knowledgeable about interesting areas, and didn't think they could contribute.
Please stick to one topic per comment, so that highly-upvoted topics stand out more clearly.