> I'm working on a concept for a q/a site for people who would enjoy answering questions and/or get answers to questions more than they like playing teacher, mod or what do I know.

Isn't that sort of what Quora is? I've only visited Quora through links from HN but the threads there that have been linked here seem to be that kind.

(The main reason I don't use Quora directly is that I dislike the way they always try to force visitors to register in order to browse the site. Same goes with Pinterest.)