As far as a I know Bliiz's policy on the buyer is to send them a mail as a warning. I've received the mail but never got a suspension for it. I'd like to see them mass ban gold buyers.....they would have 10 players left in their active accounts.
I got a ingame message saying I schould check my e-mail. E-mail looks like this: subject: World of Warcraft - Notice Regarding Purchased Gold Greetings, In light of some recent activity on your World of Warcraft account, we’d like make sure you’re aware of the negative impact that buying gold from third-party companies has on the World of Warcraft community -- as well as the potential consequences for players who are found to be using such services. Every day, we encounter players who have been victims of in-game scams or whose Battle.net accounts have been stolen, and who log in one day to find their characters’ inventories have been stripped of gold and other valuable items. The overwhelming majority of these scams and thefts are conducted by unethical third-party companies that sell stolen gold to other players for real money. Accounts of players who choose to buy gold and support these exploitive companies may be subject to a variety of account penalties, including the removal of purchased gold so it can be returned to the rightful character. Third-party gold-selling companies frequently prey upon dedicated players -- often including their own customers -- without regard to the disruption their actions cause to the game and other World of Warcraft players. Ultimately, without players’ support, these companies have no way to continue their unethical actions, and that’s why we encourage the community to refrain from using their services. Additional information on the negative impact of purchasing gold, as well as some important information on how you can protect your account from theft, can be found on our website at: http://eu.battle.net/wow/en/services/anti-gold/ Thank you for helping us keep World of Warcraft a fun and safe environment for all of our players. Regards, Blizzard Entertainment http://eu.blizzard.com/support/ no ban for this however. If you really want to buy gold only do this from companies you truly trust.