If 90% of those trillions go through cryptocurrency platforms, wildly justifies closing them down. Or at least implement drastic Know-Your-Customer rules. But a

If 90% of those trillions go through cryptocurrency platforms, wildly justifies closing them down. Or at least implement drastic Know-Your-Customer rules. But at the same time, if those platforms are also only used by people who bypass taxes, then there is no legit usage left for those platforms. Might as well leave them open and investigate each customer.