I asked a question on a Stack Exchange site (not SO) that was immediately reported as a duplicate. It
wasn't, the duplicate wasn't even close in multiple ways, and someone else jumped in to defend the question - he was then upvoted by several people. Despite this, there is a permanent prompt to either accept that the question is a duplicate, or to edit my question and explain why it isn't.
This is nonsensical, because the reason that it isn't a duplicate is inherent in the question itself. I'm not sure how I would edit it without writing a non-sequitur. Even though I've actually accepted a correct answer, I cannot get rid of the prompt.