The intent of this question is to come up with some community guidelines on editing and on accepting edits. (Perhaps it might not warrant a meta post. I only see a 'problem' once in a few months.)
Users often post questions that are unclear or too broad. These questions are usually closed, sometimes an answer is given to explain why no clear answer can be given. But sometomes upon reading an unclear question you can think of a possible interpretation that would make the question precise. Should you edit the question to reflect your own interpretation?
I think there are both cons and pros to editing. Editing replaces a low quality question with what you deem to be a higher quality question. But the original question is kind of lost. Perhaps the OP meant another interpretation.
I think the new question is clearly of higher quality than the original but I also think this is a non-unique interpretation.
Under what conditions should we make such an 'interpretive edits'?