If you read the announcement carefully enough it says specifically.
The use of input broadcasting software that mirrors keystrokes to multiple WoW game clients will soon be considered an actionable offense. We believe this policy is in the best interests of the game and the community.
Round robin keystroke passing does not fall under this definition. There is no mirroring going on there. It's one input, one action, in one client. Granted, I'm pretty sure that's going to be a pretty fine distinction and likely not to be sufficient to reverse any account action.
Connect With Us