Yeah, I know it's frustrating, and I know it's gotten worse recently. I'm just trying to get across that botting isn't a situation that can ever be fixed. Their current system was working fine for years. If something's changed in the community (and it may have), Blizzard may need to adapt their procedures.
That doesn't mean they're doing nothing or don't care. Changing a system that directly affects paying subscribers, though, is going to be the kind of thing that needs to go up the chain and get approved, and they're going to be relatively cautious; it's not like one guy can just go "screw it, ban all the botters first thing". The guys taking in this information almost certainly don't have the authority to make that call.