I noticed that in this question, "HTML buttons vs hyperlinks for navigation", Michael Zuschlag provided a much-upvoted answer that he directly copied and pasted from a similar question on UXExchange.com.
Charles mentions in the comments of the question that "this shows there really isn't a need for both sites", which is certainly a good point, but I have to wonder whether duplicating content across different sites is what StackExchange was really meant for. Obviously there's currently no way to close a question and redirect it to UXExchange or vice-versa, and perhaps we shouldn't want that anyway, but I do wonder whether we should perhaps discourage copy/paste answers and instead promote original material.
How do you guys feel about this?