Imaginary scenario ... as understood from most related posts
* 3 users on the same UBR as me download anything they can 24/7, which causes me problems.
* NTL twigs they're power users and charges them extra for exceeding the cap.
* I still have degenerated sevice, power users still download 24/7, NTL generate income.
*I still have bad service
The only way my service would improve is if the power users were dropped to a low tier .... with the threat of a permanant drop for repeated overuse.