I have seen a number of cases where a post was converted to a comment by a moderator, but not all of the post made it through. The last one being here. I have had this problem as a moderator myself, sometimes only later realizing that the content was truncated. As far as I can recall there was no warning given that the post was over-length for a comment. Therefore I am requesting:
A warning when a post is too long to convert-to-comment without truncation.
The statement given when convert-to-comment was implemented was:
NOTE this feature is designed to salvage "good" information from non-answers. It is not meant to be used to convert "thank you" answers to comments - they should be simply deleted.
Nevertheless both the comment and answer that I have received seem to either ignore or deprecate this purpose for the function. I am specifically wondering about this case: salvaging good information from non-answers. The suggestions to either leave the answer or edit the information into the question are not appropriate here.