one of the developers on twitter (i cant remember who) got asked that, and all they said was its a simple text based exploit that doesn't show up for anybody but yourself, so its the least of their worries :p im surprised though. every time there's a harmless flaw/exploit in the game, whether it be in private matches, etc. they seem to take personal offence to it and go out of their way to ruin the fun. infinity ward pisses me off sometimes.