The working principles of these anon coins are really confusing. Sometimes I wonder whether these principles actually really work. For example, when you just do a mixing like Dash ... then you mix 3 transactions. But if I send 9.34313 Dash via a Masternode to B, then B will receive exactly 9.34313 Dash. How big are the odds that around that time someone else also sends this exact amount of Dash ? So it makes the mixing a useless operation. Or did I misunderstand something ?

Monero has a more complex scheme. I don't know the details for sure, but I remember it had something to do with a bunch of addresses that are generated and your money will be send in pieces over all those addresses and then from those addresses it will be send to the receiver. Take the encryption away, and then I still think you can find out who send the coins. If B receives 2.7 XMR from a 10 addresses ... then you know that this sum probably comes from the same source addresses. So if you trace back, you can easily find who sent the coins. Fortunately for XMR it uses encryption. And that's where its value can be found. Again ... did I misunderstand something ?

NAV uses a subchain. But if you take away the encryption then it is again possible to trace back who sent the coins. The decoupling via the subchain doesn't help much. You know that at 16.00 h 9.35 NAV has been sent to the subchain and that at 16.01 h someone received 9.35 NAV. So not difficult to trace back. But the strength lies in the encryption. So nobody can see how much you sent, which makes it impossible to trace back who sent the coins.

I openly admit I know nothing about these cryptostuff ... but following my logic I don't see why there is this mixing and subchain. At this moment with my limited knowledge, these things look rather useless. The strength comes only from the encryption schemes. Please, if I am not right, correct me. I am always happy to learn something. These anon coins are interesting