On a related topic, someone just got really confused by the fact that the infobox at the top of Discussion says
You're looking at Less Wrong's discussion board. This includes all posts, including those that haven't been promoted to the front page yet. For more information, see About Less Wrong.
And then the person naturally assumed that an article that had actually been posted in Main could be found from browsing Discussion.
I brought up the problem with the description of the discussion board and got a bunch of karma, but nothing happened. I've contacted tech about my being able to change site text-- I'll try again without the assumption that I'd be making the changes.
I told an intelligent, well-educated friend about Less Wrong, so she googled, and got "Less Wrong is an online community for people who want to apply the discovery of biases like the conjunction fallacy, the affect heuristic, and scope insensitivity in order to fix their own thinking." and gave up immediately because she'd never heard of the biases.
While hers might not be the best possible attitude, I can't see that we win anything by driving people away with obscure language.
Possible improved introduction: "Less Wrong is a community for people who would like to think more clearly in order to improve their own and other people's lives, and to make major disasters less likely."