Blizzard is taking steps now to violators, hackers, and who exploits to boost their performance in all real-time strategy StarCraft II! And as the results, remove 5000 users and terminate access to Battle.net last weekend.
FYI, Blizzard has already been banned from more than 320 000 people who used to hack and exploit WoW, Warcraft III and Diablo II. This is not new, and Blizzard can easily cut access to the waste and put the penalty if you do violate their rules. So play fairly!