Why downvote? I honestly do not get it. 
RiderOfGiraffes: If someone posts something that is negative, detracts from the discussion, or is generally of negative value, the way to provide feedback is to downmod.  If there is value to be had from doing so, a followup comment is indicated.Many people downmod simply because they disagree, and I think that's wrong.  But that's my opinion.  Personally, if a comment is of positive value I'll upmod it, even if I don't agree with it.