There is a difference between hacking and modding. Call of Duty so called "hacks" are MODS! "Hackers" are "Modders" in the gaming world.
Definition of "Hacking":
Originally posted by Urban
Hacking is the gaining of access(wanted or unwanted) to a computer and viewing, copying, or creating data(leaving a trace) without the intention of destroying data or maliciously harming the computer.
Definition of "Modding":
Originally posted by Urban
The act of changing a game to make it another, or add features previously unavailable, old, or previously nonexistant. It is commonly done in PC games.
Now, you can not blame anyone but yourself for getting banned. You're playing online with modded binds and more and likely pissing normal gamers off.
Yes, its frustrating that you got banned and may have lost important data on a video game but its your fault. He is doing the gaming community a favor by banning the ones who have ruined the Call of Duty classics such as World At War, and COD 4.