TMoW's bot isn't that great. All of its functions are just stuff you can dl, they didn't put any real effort into it. You wanna see a real bot? Go check out that one clan whose name I can't remember right now, they had amazing functions that the chief made himself.
Anyway, I like the clan rank idea (since it makes people feel better about themselves and will give me less stress of having to decide between peon and grunts only), but, as you said, it seems like a great hassle. It would take away a lot of our time. Then again, not like I've got anything better going.