As I know, Yolodice allowed users to create multiple accounts even he didn't abuse the system like
referring himself to take advantage and etc. Maybe they will look at this and analyze for fair the competition with each other.
Since each roll can be verified, i also think it's allowed to create new accounts to betting on yolodice (i've seen many people doing like this on other site too, they even running few accounts on same time with bots). While this guy betting, when he already hit 9900x or on profit, he will create new account and tip this new account with all balance from his previous account and he keeps repeat that.