"This was caused by a combination of conditions occurring while Steam was updating the disk image of a game. This wasn't a game-specific mistake," he explained. "Steam allows us to manage and reverse these erroneous bans (about 12,000 erroneous bans over two weeks)." "This was our mistake, and I apologize for any frustration or angst it may have caused you," wrote Newell. Valve has granted those mistakenly banned a free copy of Left 4 Dead 2 to gift to a chum plus a free copy for themselves if they didn't already own it. Thanks to the many, many people who sent in tips on the subject.
Call of Duty: Modern Warfare 2