AFAICT, the stresses seem to be largely confined to those in the close orbit of the Singularity Institute. Eliezer once said: "Beware lest Friendliness eat your soul". So: perhaps the associated pathology could be christened Singularity Fever - or something.
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.