Nice, so all someone has to do to mess with people is,
1) Hack someone's account
2) Send the coins to random wallets
3) Watch as people have their accounts frozen for no apparent reason
No, it's even worse.
1) Hack Account.
2) Cash out at Mt. Gox.
3) Some sucker's account get screwed because Mt. Gox is trying to (
Nobody is going to hack an account and hold on to the bitcoins when they can convert them to cash after a short delay... Mt. Gox locking accounts is stupid and damaging to it's function as an exchange.