Well, I did some random BGs last night, on both Horde and Alliance side. Queues were a bit longer than normal on both sides, most likely because people were choosing not to queue with their bot software down for the night. However, I'm okay waiting an extra 10 minutes for a BG with no botters in it.
PvP in WoW is fun again when (the software which shall not be Named) is down. Playing field is really evened, no pun intended. Lost some BGs. Won some BGs. It was interesting to see the comments of my teammates in BG chat: things like "wow we never win this bg" (spoken by a Horde player in ToK when we roflstomped). Also of note, there were virtually no players AFK'ing on any team I joined. Everyone was actively playing.
Personally, I don't think that many people actually got banned. From what little I gathered from reading people's comments about (the software which shall not be Named), it has some sort of safeguard that stops it from running when Warden knows about it, or something like that. So for most people who cheat with it, it just didn't load when they logged in yesterday, so they didn't get banned. As soon as the developers of (the software which shall not be Named) update it, they will go right back to cheating.
It would be nice if Blizzard kept updating Warden constantly over the next few weeks. Every time they update it, they WILL catch some number of cheaters who are online at the time. If every time they update it they manage to catch 10% of the cheat botters, then by a process of attrition eventually most of these people (at least the ones who are too stupid to uninstall it) will end up with the six month ban.
As an aside, I'm also unclear on why they haven't sued the makers of (the software which shall not be Named), as they sued the people behind the old Glider years ago. I wish they would.