Simon Janes slant.co/c/develop... has identified a niche that stack overflow actively stomps on: discussion of comparative advantages of different things.

Mark Dain I've used wikivs for this in the past: wikivs.com/wiki/ap... but will check this site out as well. The editor question seemed to be an up/down vote though. Is there any discussion?

Nkrs Also a niche that can potentially be a good source of clicks from search engine.