Should downvoting be allowed on comments?
I have seen that comment can be flagged/marked as great comment/marked as useful comment. But, I haven't seen any such that says - "this comment is not appropriate/invalidate/wrong/false comment or any such. Simply something that is in a negative sense as far as comment is concerned. Because I had seen several comments which I didn't like or I am against of such comment, so in that case I would like to mark that comment as inappropriate comment.". Can something of this kind can be added to StackOverflow in future?