Sometimes questions that seem valid and interesting seem to just pass people by—it has happened to some of my own questions, and I have seen it with other questions too. Often, I think it is a matter of how the question is phrased, so that if it were phrased in a (completely) different way, people would be more prone to answer it.
My question now is: if someone posts a question, and realizes after some months or so that no-one is interested in answering it, is it acceptable for this someone to delete their question altogether, and then post it over again, but in a whole new shape, as it were—that is, phrased in a better way, with clearer examples and so on?
This is not a duplicate of How Can I Rekindle Interest in an Old Question; I could explain why, but instead I shall quote Tonepoet, who has already explained it very succinctly in a former comment to this question:
That is a related question, but the relationship is only incidental at best, so I would not consider it a duplicate. That asks for a variety of good methods to rekindle interest, whereas this asks if a specific method is permitted or doable. No answer to that question has, as of yet, addressed deleting questions first then reposting them (keep in mind that deleted questions are not duplicate targets), and probably shouldn't even consider doing so unless this question is answered first to know if it is a valid option which may be done in the first place.