Some research says that lurkers make up over 90% of online groups. I suspect that Less Wrong has an even higher percentage of lurkers than other online communities.
Please post a comment in this thread saying "Hi." You can say more if you want, but just posting "Hi" is good for a guaranteed free point of karma.
Also see the introduction thread.
Hello. Been lurking on OB and LW for ages. I actually end up forwarding quite a few posts along to a friend of mine that thinks everyone here are robots or soulless automatons because of the lack of respect for intuition. I keep telling her to come here and post her opinions herself, but alas, no bites.
This is me signalling that I'm smart: B.S. computer science, M.S. journalism, currently employed in the fine art auction world.
Your friend may be interested in When (Not) To Use Probabilities, which does in fact explain why in some situations, humans should rely on intuition, rather than try to use probabilities we can't compute.