I guess since no one is perfect, downvote opinon simply means that people disagree not that your a bad person or anything. For example I think before I disagreed with the asker and everyone else was in the agree so I got a whole bunch of down votes.
No, I'd rather not. I don't even like the ability to downvote, and especially not being able to see votes before you vote. That's how forums become circlejerks and divide people.
I don't think people should be influenced by others to make their decisions. It would be best if people weren't so easily influenced by what others approve/disapprove of, but as people are so impressionable, the voting system itself changes how people respond to questions.