Sure, but I'd expect that a community devoted to "refining the art of human rationality" would be more skeptical of that type of claims.

In that case I think you overrate the amount of energy the average person in the community invest in it. LW is very diverse as far as opinions go.

I myself dislike certain talk about signaling where sometimes armchair evopsych appear, but the idea of signaling is rooted in game theory.

There are also people on LW who do read real evopysch and make arguments on that basis.

And in particular the "Schelling Day", which bothers me the most: http://lesswrong.com/lw/h2t/schelling_day_a_rationalist_holiday/

I wasn't aware of Schelling Day.