I have gotten so many RWT goldfarming bans on my sorc bots. However when you run 400 different bots in the span on of a few months your going to get a couple. My friend was running 40 sorc bots and all 40 of his got banned at the same time for RWT goldfarming, and also the account he transferred all of the money from selling herbs to was banned. All of these bans are perm. However he only got banned because he was unwise on his strategy of how to transfer money between accounts and such.
Just know that bans are out there..