Cryptos can be anonymous as long as you do not put a face to the address. However that is impossible because for the time being we all still need fiat to live in the real world. S o when you change cryptos to fiat your anoyminuty disappears becasue of KYC and AML procedures required at all exchanges. Unless you keep your cryptos in crypto-space, which I can cannot see anyone doing at this time all transaction are traceable. Are cryptos with built in privacy/anonymity completely private we will have to see when the features are bypassed because it is just a matter if time.