There's also the fact that people who have read the post and are unaffiliated with the SIAI are taking it seriously. That says something, too.
Well, many are only taking it seriously under pain of censorship.
I dunno, I'd call that putting up with it.
Edit: Why do I keep getting downvoted? This comment wasn't meant sarcastically, though it might've been worded carelessly. I'm also confused about the other two in this thread that got downvoted. Not blaming you, wnoise.
Edit2: Back to zeroes. Huh.
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.