Perhaps comments could be tagged and any +1 or -1 to a comment would trickle down to all of those tags? Would people take the time to tag comments?
You'd need a way to boil down the answer choices in order to declare a clear cut winner. By boiling it down, you take the personality and shades out gray out of the comment you'd be voting on and therefore much of the value.
Also, if the winning side is a "pro life" tag and you are pro choice, you are unlikely to see much value or be swayed by the vote. I would see such a vote as dumbed down and dig into the comments for the 'real' content.
You'd need a way to boil down the answer choices in order to declare a clear cut winner. By boiling it down, you take the personality and shades out gray out of the comment you'd be voting on and therefore much of the value.
Also, if the winning side is a "pro life" tag and you are pro choice, you are unlikely to see much value or be swayed by the vote. I would see such a vote as dumbed down and dig into the comments for the 'real' content.