Strongly seconded, but is it reasonable to expect this to happen spontaneously? I'm pretty sure SIAI lacks the human resources to do this. Less Wrongers could do this but only if the site was reasonably well-seeded first and had a moderately memorable url, good hosting, et cetera. We have a hard enough time with the LW wiki. Even then it would require at least a few dedicated contributors to avoid falling into decay. The catastrophic risks movement seriously lacks in human capital.