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. I don't make the time for active participation in this community, but I enjoy my read-only interaction with it.
I have a sense that the time commitment required for effectively participating in this community is relatively high, and I haven't discovered yet whether this time investment pays back.