I understand that the policy is not to allow any answers whatsoever in the comments, but there is a bit of a weird situation when it comes to [on hold] questions. Lately I've been encountering a lot of on hold questions where comments have been removed by the moderators with the usual 'An on hold question is not an invitation to answer in comments.' or 'Please don't answer in comments.'
This is, of course, simply the moderators doing their job, but often these answers could have helped the person asking the question to better flesh out their original post to make a proper answer possible, so that it no longer has to be on hold.
Sometimes the comments that get deleted are in fact such good answers that it makes me wonder why the question was put on hold in the first place, because clearly it was precise enough that a proper answer could be formulated. Blink a few times and the answer is gone though.
Shouldn't we be leaving these comments around for longer than 5 minutes, so they can help improve the question?