If I wouldn't know better I'd assume this was a poor attempt at temporarily raising gold prices lol.
Btw a chinese company once predicted that their toon will be banned and told me to split from /p immediately. Too late, I assume some companies have inside sources which obviously could neither be named or should even be hinted at. I take this as a well meant heads up, but I will gladly except a ban as well. Still have 12 dead cata accounts lol, but I'd probably use the opportunity to stop.
I think Blizzard knows exactly how many players bot and probably are seeing a respectable decline in the number of subscriptions since Pirox closed their business.
Besides, I don't think blizz is actually fighting botters in wow at all anymore, despite the looks of it with suing Bossland GmbH and all that. If someone is botting in an obvious way and receives a lot of reports, he is gonna receive a ban. As long as there aren't enough reports though, you are fine it seems.
I've had an account perm banned for selling 100k in January 2011. Got it restored after 1h15min (sob story). Got 2 suspensions in the foloowing 3 months or so and been good since the last despite 24/7 botting.