On the other hand, conspicuous lack of effort can also have signaling purposes -- you might want to convey the message that you're so skilled that you don't even need to put effort into it for the results to be worthy of recognition. "Try-hards" and "wannabes" generally have a pejorative sense.
In any case, what does the first clause (technically, the first two) have to do with the second? Even given that you're right about what humor is about, if you put more effort into signaling spare brainpower through humor and the results are not better than someone else's, what positive thing does this say about you? You'd just be that guy who has to read joke lists to entertain people at the party, and it's probably not the sort of thing you'd want to brag about. In status-competitive environments, people don't give you pats on the back just for trying.
Conspicous lack of effort is often a huge lie, though, as research proves. In the very best of cases, it is the dividend for enormous cumulative amounts of previous and strenuous effort.
This is my first attempt at starting a casual conversation on LW where people don't have to worry about winning or losing points, and can just relax and have social fun together.
So, Big Bang Theory. That series got me wondering. It seems to be about "geeks", and not the basement-dwelling variety either; they're highly successful and accomplished professionals, each in their own field. One of them has been an astronaut, even. And yet, everything they ever accomplish amounts to absolutely nothing in terms of social recognition or even in terms of personal happiness. And the thing is, it doesn't even get better for their "normal" counterparts, who are just as miserable and petty.
Consider, then; how would being rationalists would affect the characters on this show? The writing of the show relies a lot on laughing at people rather than with them; would rationalist characters subvert that? And how would that rationalist outlook express itself given their personalities? (After all, notice how amazingly different from each other Yudkowsky, Hanson, and Alicorn are, just to name a few; they emphasize rather different things, and take different approaches to both truth-testing and problem-solving).
Note: this discussion does not need to be about rationalism. It can be a casual, normal discussion about the series. Relax and enjoy yourselves.
But the reason I brought up that series is that its characters are excellent examples of high intelligence hampered by immense irrationality. The apex of this is represented by Dr. Sheldon Cooper, who is, essentially, a complete fundamentalist over every single thing in his life; he applies this attitude to everything, right down to people's favorite flavor of pudding: Raj is "axiomatically wrong" to prefer tapioca, because the best pudding is chocolate. Period. This attitude makes him a far, far worse scientist than he thinks, as he refuses to even consider any criticism of his methods or results.