User blog comment:Sarah Manley/Announcing Achievements - Edit your way to the top/@comment-82555-20100809212048

Its the administer(s) on the wiki's job to make sure pointless edits like that don't happen and the users that do are warned. It seems that most are under the impression that all users make pointless edits and no one else cares. It may be the case on some wikis, but not all.

Also, this idea does seem to me more successful on Fan-fic/fanon style wikis as most users are "awarded" for providing their fan fiction's or fan characters. I'm not trying to say that regular wiki's fail when using it, though.