I often comment questions asking the OPs to provide more details, and I also suggest to add those details in the original question. However, this is frequently ignored, and most of the details remain in the comments. I don't think this helps improving the quality of the question, which should be the real goal of commenting. Is there a reference on the help pages or in this Meta site I could cite, which encourages OP to include details provided in comments, into the main question?
EDIT just to be sure I understood some of the comments below, if I don't want the question to be closed, but to be put on hold because it's unclear, I click on
flag and select this option, right?