Yeah.. I could see more than 1,000 spam transactions to the address. But I don't know whether the guy who received 13.37 ETH in his wallet will be able to spend that money. If his address is linked to any exchange wallet, then he will find himself in big trouble. Legally, the authorities can't prosecute him, as he hasn't directly taken part in the hack. But he has received stolen coins and now his past transactions will also be under the scanner. And personally I don't encourage this sort of behavior. Why should anyone help the hackers?
Instead of helping to track him, he was the one who provided the getaway car in terms of stealing.
The attacker insisted it was not about the money. So what is it for?
If I have this kind of gift to think at an awesome level, I'd rather use it for a better crypto industry. What is he thinking? Jail time is not fun at all than being in front of the computer everyday.