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.
I suppose that the most glaring example is that consequentialism, in some form or other, seems to be accepted as obviously correct by most of the commenters here. So, It's funny that you should reply, since I recall that you may be an exception to that stereotype.
Yup, that's me, resident deontologist. The other day, during a conversation between me and some other house residents on ethics, someone said "She doesn't push people in front of trolleys!" and everyone was outraged at me.