In this question the real beauty of the accepted answer is in the detailed comments that the respondent left in response to probing questions (also in the comments).
Would moving those responses (and maybe even editing them for punctuation, capitalization) into the actual answer be an acceptable edit or should we prod the respondent to do it themselves?
Update
I made the edits including adding a few words to make it flow as if it were the original response and added a comment saying I did that.