I remember seeing multiple times a moderator or other regular user of our site comment on a question that asks a question and then goes on to supply an answer within the body of the question. Generally what the comments say is something along the lines of "you should delete the part of your question that is answering the question itself and instead post that as an answer, there's nothing wrong with answering your own question."
I was recently going through the vote to close queue and found this question which I think clearly is an example of one of these questions. The first sentence is stating a question and the entire rest of the body is the OP explaining why they believe a certain answer to the question is correct. This exposition on their opinion is not in any way integral to the question's coherency or illuminating of what the actual problem is; it is just the OP explaining their view.
How should someone give feed back on these types of questions? There isn't a close option for this problem, and to be honest I don't see closing the question as the answer. I guess putting on hold until the author edits their question and removes the answer part would make sense, but I'm wondering if there is anything better that can be done. Voting down is never productive without a comment, but at least on this specific question the comments are filled with derailed arguments about why the question doesn't make sense in the first place, so I doubt that bringing up a comment about moving the second part of the question to an answer would be well received. In this situation and others like it, what should be done?