Hi. I've been reading fairly religiously (haha) since the Overcoming Bias days. I post/comment little because of a perfectionist tendency (I want to get everything first).
I'm in the process of thoroughly going through the Sequences -- love every minute of it, though it's sometimes a little overwhelming...
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.