[3form]

It's sorting by score rather than anything else, in my experience. Makes it largely opinion-forming on the participants.

[anal_reactor]

Once I've seen a website where you couldn't downvote, only upvote. That was actually a great thing, because it promoted posts that at least a significant portion of people agreed with, not just posts that simply everyone agrees with.

[mantas]

So… FB with like and no dislike button?

[esafak]

Youtube does not expose the number of down votes any more. LinkedIn has no dislike button and I find it positively toxic.