I recently wrote a Story ID question after doing a few searches and, at the end of writing it, noticed a potential match in the "similar questions" to the right. Indeed, my question had been asked before, albeit with different details. I wound up keeping my question, and closing it as a duplicate (not of the one to the side, which was itself marked as a Duplicate, but of the question it was worked as a duplicate of). Do we have a policy? The closest I've found is Valorum stating that his belief is that a comment should be posted to the OP with the additional details. The thing is, my understanding is that comments are not searchable, so the details would not actually help people to find the story in question.