User blog comment:Sarah Manley/Sneak Peek at the New Look - Community Activity/@comment-3100721-20100827000556/@comment-761251-20100827184048

Sarah, sorry if I was unclear, but if the latest uploader is credited, you may still be crediting somebody who does not deserve credit (and that's not even touching upon people who do vanity re-uploads). A common example is where somebody reverts a file to an earlier version.