Assume I request clarification in a comment on a question in the form of I see contradiction in the question in argument 1 and 2. Please edit!. Then, most users write a comment in reply without reading again their question (which is one of the most important and useful thing when editing). It is annoying if that happens (eventually multiple times) on an interesting, but yet contradictory, question (which is destined to be improved by comments).

Is it legitimate to announce that I'm going to downvote if the OP doesn't manage to edit and writes comment after comment leaving an incomplete or contradictory question and comment resolving that rather than a good question? Is is legitimate to do that after the 2nd, 3rd, ... comment and request to edit the question? Is it legitimate to do that with an OP who has x reputation?