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.
Long time lurker here. Seattle WA. I've been following what Eliezer has had to say since 2003. Started way back on extropy-chat mailing list and reading SL4 archives, read Overcoming Bias since around 2008, and now I read here. I only lurk because I find that getting involved in discussion is too interesting, it distracts me from my projects.