Blizzard has taken a renewed view on gold farming and selling and is starting to remove accounts of poeple laundering gold.

We are removing gold and items knowingly or unknowingly received from a compromised account. This includes characters who have been used to "launder" comprimised gold, and characters who have purchased the gold from a gold seller.

Please keep in mind that the purchase of gold for real life funds is against our TOS, and we will not be reimbursing either gold or cash for the items andgold lost due to this action.

You can find more details here.