Originally posted by Dance Master MC
I'm guessing this is not a popular idea right???
It's an interesting idea, but the problem is exactly what c99ux was getting at.
Someone improving could eliminate themselves just by getting better. That's a problem that your idea would have to have a proper solution to. Especially since from what I understand, it takes a while to get to your siege game when you sign up and you likely could get higher than that rating during that time.
Maybe it could just be that would have to be your rating when you enter and you can't re-enter if your tournament rating isn't in that range.