No because "down" doesn't mean "disagree" -- down votes cause comments to sort lower and negative amounts will gray out the comment. "Flag" kills the comment i

No because "down" doesn't mean "disagree" -- down votes cause comments to sort lower and negative amounts will gray out the comment. "Flag" kills the comment if deemed by moderators as inappropriate. In this proposal, "disagree" and "agree" are both the same as "up".