Multiboxing

Is Multiboxing legal ?

yes, there is even a section dedicated:
http://forum.warmane.com/forumdisplay.php?f=189

recently they have added a 5-player limit (just for open world and PvP instances).
For PvE instances there is no limit. More info here: http://forum.warmane.com/showthread.php?t=434119

Thank you for the fast reply.