I dont like the downvote. I like the diamond system more. For example, some people used downvote shamelessly to troll and annoy. While most of PMC users are the good guys, there are some "bad eggs" lying around.
And what, is it going to ruin Your day (those who like to get downvote back..) to see the work You dont like, on the front page?
Well, if downvote is coming back, there should be a system so You must give some reason to downvote, like, what is it there You dont like etc.... Now, I know this suggestion may get some, or much negative feedback (perhaps..) but thats my suggestion IF their going to bring back downvoting.
SO, no, I dont like downvote, so it is good that they got rid of it. :]