Since you have decided to close this business, it is possible that you put your site on auction and sell it instead of completely closing it ?
This way the site will continue to run but under the new management. I know some investors may be willing to buy a running business.
When you auction a casino that has people's investments on the bankroll you can't just sell it to anybody. You have to make sure the buyer can be trusted to not steal the bankroll since the whole thing becomes wide open to them.
I don't know the size of YOLOdice's bankroll but I doubt Ethan would sell the domain to some random stranger on the internet.
Even if he sell the domain and casino, i will quit Yolodice as i will not trust the new people managing the same gambling casino. Since we would not know their reputation they can use the name of yolodice to scam people. I will not encourage this idea of selling this domain to any random person for money.