Disagree: A multiboxer can be a game changer for better or for worse. For example in AB, if a five-man is roaming around together, that's one third of the team. Or more precisely 1/3 of the team regulated to one aspect of team-play as all the slaves will have to follow the master. That can pretty much cripple the team, as I've seen on a number of occasions. That said, I do understand the point is overwhelming firepower at one person's disposal,
Yes, for the most part multiboxers are lol. Snowdew was better than most at covering the field though. In AB, all you really needed were 3 competent people to stay at Farm, LM and BS and call out incs early. Snowdew would be the flex group, and (s)he would always be there in time to wipe out an attack. I know finding 3 competent people in Horde AB can be difficult, but Snowdew was an absolute difference maker there. Far from crippling.