Anonymity is crucial for a casino, no one wants to be known about his winnings, especially if the winnings are large or there are many of them. As for the exchangers, there are fewer and fewer anonymous exchangers now.
But the question everyone is asking I'd that, is that even possible this days? Because many casinos would vo.e here and tell people no KYC casino and when someone wins big, KYC request would start and their would be some kind of conflict between the two people. And when the accused of the casino create thread here many would ask for evidence. But we don't really know what conspired both on the background.
Large amounts always attract a lot of attention and casinos don't like paying large amounts very much. If the casino does not have a license and it does not conduct a KYC procedure, then what guarantee is there that this casino will pay money to the winner?