being a reddit user, I am wondering if the IAmA questions are/would be allowed at stackoverflow, I think they can be fairly useful here.
please let me know what you think.
Unlike Soylent Green, these sites are not about people.
I think that questions should be only about particular problems. From what I see, these IAmA questions are more of a discussion type. Not really suitable here, as this is a Q&A site. Ask about a particular problem, get answers. It doesn't matter who is expert or not, the community votes to choose the best answers.
I would say resoundingly No, there is already a site with a large user base that has a "ask me anything!" question format in its culture, so those questions should stay on that site.
(I also direct a number of subjective questions and extended discussions to http://reddit.com/r/programming as well, and many SO questions are posted there, so the two sites can happily coexist.)