Ya, keep a running total on the ranked servers and if your tk ratio breaks a certain number.... EA should can their account. Oh wait... they won't make any money by doing that... so it will never happen.
I think they should also put in an ignition key sequence for the planes and choppers. If you can't figure out the start keys, you don't get to fly. Too many first timers grabbing choppers and causing much destruction.
Make it easier to vote someone out. Because of voter apathy, it's difficult to pass a vote. They should use fuzzy logic for the game to determine if someone is team killing or doing other non-purposeful activities. When someone initiates a kick vote, it should require a small percentage Yes votes to pass.