In another move against gold farmers, Blizzard has announced that 76,000 accounts were closed and 11 million gold removed from the game during the month of September. And while Blizzard's efforts in this direction haven't halted gold farming or selling (evidenced by adverts in my in-game mailbox as recently as yesterday), they show no sign of halting their own efforts. If you see a player you suspect to be bot-farming, Blizzard encourages you to report them to the Hacks Team via an in-game help request or use of their e-mail form
. You probably won't get instant gratification, but all reports do get investigated.