I think blizzrad are in the same mind as us guys when it comes to AFK pvp. The reason I say that is that, I was listening to the WoW Podcast "The Instance" and they were talking about this very subject. A quote from the instance website
Yesterday, CM Bornakk announced “Starting immediately, we will be issuing warnings and penalties, including suspensions and the removal of Honor points and recently acquired Honor rewards, for non-participation in Battleground games. We are taking action against thousands of accounts immediately, and will continue to monitor these situations and regularly take action against violators. If you encounter a player in a Battleground who is intentionally not participating in the battle for an extended period of time, please help us track the situation and report the player as AFK. All reports will be thoroughly investigated, and corrective action will only be taken if the violation is confirmed.”