Too Long; Didn't Read
The first draft of Reddit voting only had 'interesting' and 'boring' under every link. The first screenshot in the Wayback machine did not come until after the site had switched away from interesting/boring and to upvote/downvote. When the site started, it didn't even index. That's a nice reminder for anyone making a new site today, you could become a top ten site one day. When you think about empowering community to determine an aggregate list, the ability to demote the bad could be as important.