You're all wrong.
They can't take the gold that's already been xferred. Well they can, but they won't. Rollbacks are automatic. That's why if you sell the items and buy something new via the botted wealth, they won't take it. The system searches for gold coins via grand exchange sales from botted items, and the items themselves. So your friend most likely took them.
Learn what you're talking about before you post. Whores. ^^^