Casinos pay taxes so they must inform about big wings. Winners also pay taxes. You can not win money and not pay taxes for it.
Who doesn't want to pay taxes wins not money, but cryptocurrency. Preferably Bitcoin on the Lightning Network, so it can't be tracked. But the mandatory condition is that the gambling platform must not know who you are. That's why topics like this are needed.
That is why cryptocurrency casinos are so popular and in demand and a lot of new cryptocurrency casinos appear. But state authorities want to controll cryptocurrency more and more. State authorities does not like when their citizens does not pay their taxes.