Continuing the discussion from What is the most awesome plugin for Discourse, that does not yet exist?:
I disagree. In a subjective environment, one should be prepared to explain their disagreement further than a simple flag. If you disagree with a statement, you should be forced to reply and post it in text, or not say anything at all.
Further, there is no “upvoting” to counter with your proposed “downvote.” I suppose you could add a “dislike” to counter the “like” but forums already include enough drama without adding such a passive-aggressive feature. Why explain yourself, when you can simply tell someone you dislike their post or something about them?