Why can't I sell U on the exchange?

The money of the exchange's currency dealers comes from different customers of the exchange. The currency circle is a big dye vat with all kinds of black money. There are only these types of people in it: the real currency traders who speculate in the currency circle, the fraudsters, the Ponzi schemers, the online gamblers, the money-making scammers, all kinds of scammers, hackers... It can be said that the currency circle hides the dirt of the world.

The money of these bad guys is transferred to the currency dealer's account, and you sell U here. The result is that the currency dealer has first-hand black money, and you are second-hand black money. This is the main reason why the exchange sells U cards.

No matter how the exchange's currency dealer reviews and screens, as long as his money comes from different customers of the exchange, he will definitely not guarantee the safety of your funds.