In a post
on their forum, Blizzard have quietly let everyone know that they've smote over three hundred thousand
We would like all players to remember that abuse of unintended mechanics and/or use of third party programs is a violation of the agreement made when signing on to Battle.net, and can subject your account to disciplinary action up to and including a permanent ban of its access to the service. These types of activities can severely impact the stability of our servers, and we’ll continue to aggressively monitor Battle.net in order to protect the service and its players from the harmful effects of cheating.
So if you're in the market for either of these games, you probably want to avoid picking up an el cheapo second hand one off eBay for a while.