Seeing as how converting an answer to a comment is probably something that only a user with sufficient karma to edit posts could do, why not just give the user the ability to edit the answer (and either not allow saving a too-long comment or just truncate at the max char limit)?
todofixthis ( 2012-07-21 21:35:51 -0500 )edit
@Evgeny has this feature been added to hosted sites as well? What is the process to convert an answer into a comment (and vice versa)?
todofixthis ( 2012-07-21 21:36:48 -0500 )edit@todofixthis we don't have this feature yet. I'll try to get it before the next release, this is not a very difficult one.
Evgeny ( 2012-07-21 21:38:38 -0500 )edit