Some of the players using "Garry's Mod" were tricked.
Users of a software game called Garry's Mod were asked by the game creator if they were unable to "'shade polygon normals." Many users posted on the game site's forums that, yes, they weren't able to play the game because they got that pesky error message followed by a number.
Those players were permanently banned from the game site's user forums.
The game creator had modified the game to only show the error message on games that had been pirated. The number was used to identify those who had not paid for the software.
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