There is a tendency to downvote articles and commentaries with a political subtext with a remark on how politics is the mind-killer. I completely understand that nobody wants his mind to be killed, however, I disagree on the employed methods. I don't think anybody can really afford to ignore politics. It's a fact about any group of even a handful of people. Thus instead of shunning politics I think it's better to build one's rational defenses. Understanding that politics is a problem is only the first step. If you stop there, there will always be a big part of life where you are not rational. Therefore I suggest that, as long as it doesn't get out of hands, there should always be room for political discussions if not on the main site at least in the discussion section.
If talking politics on LW is so great, please link to a political discussion we've had that you'd like to see more of. The political discussions here I've seen in the past haven't gone so well.
I don't think it works well for this community. I used to have some thoughts like yours -- "But I like politics! It's interesting! And I'm right, dammit!" However, LessWrong is really better without it. Both because remaining politics-free keeps us more level-headed about other issues, and because it avoids driving away the rather sizable population of rationalists who hate politics.
It's... interesting... that LW talks more about politics than about social epistemology.