In other words, Coinbase just pocketed his loss. (Assuming the transaction was made today.)
That would be my impression, and that's really shady.
This, including the XSS comment elsewhere in this thread has prompted me to move my coins ASAP.
Coinbase US understaffed, running fast and loose, and can't handle the spike in attention. This proves bitcoin isn't ready. Coinbase has a long road ahead of it.