Something I thought would be beneficial for this site would be a Template which would tag things as needing renamed. It would essentially work like the Delete, Replace or Merge Templates, but in this case, the article or image would simply need to be renamed. It's better than deleting and reuploading.
Not sure what anyone else thinks of this idea, but I've already made a working one on the Dynamite Entertainment wiki, so if an admin likes the idea, you know where to find it.
And yes, I came up with the idea after adding several images with the wrong name, but I cannot rename them, and no one knows they need renamed.