Since while back it's actually easier for new users to edit than leave a comment. Just now I encountered case where edit was not correcting or adding information to the answer, but was counter-argument to its content.
I rejected the edit and left the comment that such usage of edit seems inappropriate to me personally.
Any input if my call was correct on this one?
Maybe it would make sense to introduce community-moderated comments in same fashion as edits? The inability to leave comments seem to account for considerable amount of inappropriate answers and such.