Question and answer content has been around on the internet a lot longer than the web. From the early days of usenet (and before that, on prehistoric technologies that came before my time) people have been asking experts for answers. You can’t fail to have noticed, however, that it has resulted in some of the lowest quality content on the web. For far too many questions, the ranking answer is Yahoo! Answers (or similar) that looks as though it was written by someone who found writing YouTube comments too intellectually challenging:

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