In some cases they may simply unban with an appeal. People who haven't had any past offenses who where perma-banned obviously have more of a chance, but it was purely to make an example of people who done it. I'm guessing people who lost an account they've worked on for multiple of years would never do anything again if they got it back after doing this. Blizzard take their economy as seriously as the development of their game :/ Good luck either way peeps!