I like the existence of downvotes. They help separate content the community has no feeling about from content the community actively dislikes.
I love that they're shown separately. This helps separate controversial opinions from ones the community doesn't care one way or the other about.
I like that you can see who downvoted. Looking at their profile can give some insight as to why they didn't like the content.
I'd hate to miss out on my $0.86