Blizzard has placed a six month ban on over 100,000 players for using automated bots in World of Warcraft. Many of those users emplyed bots like HonorBuddy, which gathers honor in PvP for you without actually engaging in combat.
A message from community management states,
We’ve recently taken action against a large number of World of Warcraft accounts that were found to be using third-party programs that automate gameplay, known as “bots.” We’re committed to providing an equal and fair playing field for everyone in World of Warcraft, and will continue to take action against those found in violation of our Terms of Use. Cheating of any form will not be tolerated.
Further clarification from a community manager adds that the issue is not just with movement, but any automated action:
Play fair out there, everyone!