LessWrong primes you to suspect social consensus with people are crazy, the world is mad, teaches that you have to actually grapple with difficult stuff in detail instead of grabbing the closest cliche to end the discussion, and then introduces a Really Important Thing that relies on us being able to understand the mechanics of intelligence better than anyone has done before. It's not a long jump to go looking into human intelligence as the best existing model for intelligence we have, and then it turns out you don't need to dig very far into the research on human intelligence to hit stuff only the Dark Enlightenment folk seem to be openly talking about, while the rest of the world seems to be happy with S. J. Gould's final word.