Why downvote? I honestly do not get it. 
jeremyw: I'm impressed by the shifting voting trends when a new, dissenting (sub)opinion is attached to a comment.  A string of upvotes now is halted/reversed.  And the polarity change can happen several times.  An articulated position unleashes the silent thinker or is this a characteristic of mob rule?  (When it happens to me, it's mob rule. :)I'm also terribly sad when someone is downvoted in an opinion-thread (e.g. what is your favorite X).  I wish one could mark a post as opinion or even upvote-only.