Because crazy smart people don't consistently reach solutions. It's not surprising when they're right, but it's not surprising when they're wrong, either. There are very few people I know such that I'm surprised when they seem to get something wrong, and the key factor in that judgment is high sanity, more than high intelligence.

I'm also beginning to have a very strange thought that a reddit-derived blog system with comment upvoting and karma is just a vastly more effective way of researching decision-theory problems than publication in peer-reviewed journals.