Yeah, Rukario isn't much of a "people admin," he's more behind the scenes.
Like I said though, messaging them to change names doesn't do any good. The problem is that certain people undoubtedly asked in the thread before you, and when admins change names, they go in order from oldest posts to newest posts. It sometimes takes a few days for them to get through it, but eventually you'll get your name change. Just sit tight and wait for one of them to get around to them.