I was told by Razer few days ago that Rollbit's been/will be implementing this countermeasure, that they'll require player to complete basic KYC upon registration. I haven't check this myself as I've already have an account on Rollbit and I'm rather not interested to create a disposable account just to test the theory, but if anyone have some free time [and spare email account they're willing to give] can confirm this, that'll be helpful.