Couldn't steam use longevity to decide whether to accept crypto transactions and cancel entire accounts for fraudulent activity? Don't let bob create a new acc

Couldn't steam use longevity to decide whether to accept crypto transactions and cancel entire accounts for fraudulent activity? Don't let bob create a new account with zero games and double spend his way to a free game because he has nothing to lose. If Sam who has 100 games in his account with 10 year longevity cheats you insist he make good on his transaction or ban his account and don't ever let him create a new one with the same name and billing address. Sam is highly unlikely to value playing a singular game more than his account. This seems absolutely trivial to avoid problems with.