PCG: Won't somebody think of the poor Warlocks! I caught a story the other day about a bot program that had been used in Asia to play a couple of decks to Legend. Does that worry you or is it just the nature of the beast with online games? JC: It's definitely a concern for us and something we take very seriously. We want to make sure that the quality of play on the Ladder is representative of the skill of people who are actually on the the Ladder. So we do have a team here that we're working with to try and identify cases where that's happening, and doing what we can to pull that back out of the pool. But it's one of these things that's an ongoing challenge to us, with our other games as well, because there's obviously a lot of super smart people out there who have a lot of great ideas about ways that they can come up with bots. So it becomes this progressive thing where we make fixes and then new versions come out, but it's something that we're committed to trying to address and pull out of the competitive scene as much as possible. (Hearthstone Curse Of Naxxramas interview: "We're keeping an eye on" Zoo | PC Gamer)
Now people can go nuts and create "Ban wave inc?" "are we safe?" "will i get banned if i only use...." and all this crap threads.