The StackExchange sites, as we all know, promote accepting answers to questions. People tend to dislike answering questions if the OP has a low accept rate.
However, ignoring for a moment the problems of relying on someone who by definition knows less about the subject than the answerers to decide which is the "right" or "best" answer... sometimes I ask a question and don't really feel like I got the answer that I was after. But then I have to choose the "closest match" or suffer a low accept rate.
Could there be some alternative to this scheme? Some way to indicate that I haven't abandoned a question without thought, but that I genuinely didn't get the answer I sought?