Talking ideas.
Now that all the preseason changes have been announced, I'd like to propose a change of my own: a ban appeal system.
Currently there is no form of appealing a permanent ban issued by the instant feedback system, except for the support-ticket one which provides close to no result but for a back and forth discussion on "How I did nothing wrong" and "We're sorry but there's nothing to be done.".
So what I am proposing here is not a make-a-wish foundation for getting players unbanned at will because they've been good mama's boys since they were banned or because there has been a long period of time which can be considered as a "well earned time of thoughtful behaviour revision" so the player is no longer a gas can ready to be ignited but rather a "probation time" or some sort of mark on the player in cause. Look at it at some kind of reintegrating a meth-addict into society, a rehab. Possibly a centralized system of players "banned but unbanned" where they are allowed (or not, depending on how bad their actions were) to regain control over their banned account, but kept a close eye onto so that at their next wrong move they will be permanently locked down for good, with no chance of revision whatsoever, sort of a "leech" to a player's account that triggers instantly when he/she tends to have an uncouth behaviour.