When I first started multiboxing I reported myself, just to reassure myself that this was legal, and the GM who responded was also a multiboxer. Not only that, but he said that the night before he had setup one of his coworkers multibox setups. So, my first day multiboxing I found out GM's do this as well. :thumbsup:

Now, it would interesting to know how many actually do since all Blizz employees get three WoW accounts...