They are helping cheaters (effectinely criminals) cheat and letting their online selves be altered by criminals. The went out of their way to gain counterfit resources for personal gain (yes giving it away to a cause is personal gain). So If getting banned from one game is what it takes to hammer the point home so be it. If they do it again on a different game, they are just cheating end of story.
If they want to cheat so badly, get a server specifically for that purpose. Yet another reason for their to be a single player game, get the cheating out of your system.
If they want to cheat so badly, get a server specifically for that purpose. Yet another reason for their to be a single player game, get the cheating out of your system.