Quote Originally Posted by ebony View Post
unless they put in there TOS that u can not run more then one client per PC then its not really bannble really :P. whoever started mutiboxing just did it they did not ask. if your looking it at a law point of view ofc. IF the game support it in anyway with follow etc then well that's not really going to be bioware prob
Mosg2 is right, at any time blizz could shut down multiboxing without word or change, due to this line right here:

Account Suspension/Deletion.

BLIZZARD MAY SUSPEND, TERMINATE, MODIFY, OR DELETE ANY BNET ACCOUNT OR WORLD OF WARCRAFT ACCOUNT AT ANY TIME FOR ANY REASON OR FOR NO REASON, WITH OR WITHOUT NOTICE TO YOU. For purposes of explanation and not limitation, most account suspensions, terminations and/or deletions are the result of violations of this Terms of Use or the EULA.

and they could simply point to this when you try and appeal

C. use any unauthorized third-party software that intercepts, “mines,” or otherwise collects information from or through the Game or the Service, including without limitation any software that reads areas of RAM used by the Game to store information about a character or the game environment; provided, however, that Blizzard may, at its sole and absolute discretion, allow the use of certain third party user interfaces;


source: http://us.blizzard.com/en-us/company/legal/wow_tou.html