I think Ihm is right because that's what I have suspected. I know earlier on during Early Access (one of the very rare times I beat the log-in boss) that a character, level 1, was left outside innkeeper NPC in Uldah's Adventurer's Guild on Leviathan server, and you can see the lips moving, which means "chatting". Then all of a sudden it started to gurgitate stuff in /say, and they were all numbers, followed by what appeared to be codes or something similar. I think they had sat on some exploits found during beta and while other players had not stumbled across those to report to SE, proceeded to use these after release. SE needs to button up these exploitations because it *can* lead to server instabilities which may lead to more than just inconvenience (think about innocent players getting caught with corrupted data on their account)