A posted question says:
Find the following integral: $\displaystyle \int\cdots\cdots\, dx.$
A big problem with this way of phrasing posted questions is that someone may have copied a homework question without any understanding at all, so that no question about mathematics is present in the user's mind, and the user may just want to copy and paste one of the posted answers to turn it in as homework without understanding any of it.
Someone recently asserted here that the user's understanding of the question must be exhibited in the actual posted question and not in comments under it. But comments under the question may be just as cogent in showing that the poster has a brilliant grasp of the question as is material in the question itself.
It is of course better for such information to be in the question itself, in part because it's less work to understand that.
Is there some reason why the poster's comments under the question should not count as making it clear that the user understands the question and wants to understand the answer? Is such understanding demonstrated in the initial posting supposed to serve some purpose that cannot be served by comments posted under the question?