u/MemoryDealers

Hi Roger, I know you've received a lot of flak for daring to publicly speak positively about Dash in this toxic and hateful crypto-environment and for that our entire community applauds you. But I have also noticed you've been spammed with lies and nonsensical information about Dash's privacy model by our detractors. Let me correct the record here.

I've explained how Dash PrivateSend works in the past:

Imagine you walk up to a table with 2 other guys and each of you throws like ten 1 Dollar bills on that table. Then you ask a complete stranger to shuffle these thirty 1 Dollar bills around for you guys.

When he's done each of you takes out exactly 10 Dollars from that pile. Now could you tell which one of these dollar bills was in a drug trade 2 weeks ago? From this point on the bills are fully fungible no matter their previous history.

And now imagine doing the same exact thing on another table with two different guys and then again on another table, again with 2 other guys... up to 8 times in a row. That's how mixing with Masternodes works.

It's important to point out that a Masternode never holds your funds. It just sends out a mixing request to the network on your behalf to enable you to mix with other people. The actual mixing of funds is done by your Qt-wallet (the complete stranger in my analogy) once it has found 2 other parties to mix with.

And I have explained the chances of "breaking" PrivateSend.

Here are the infeasibly small chances of successfully tracing a single transaction at a time

The more Masternodes there are the lower the probabilities get, obviously.

And once the mixing has happened you'll never be able to retroactively crack PrivateSend. because the laws of mathematics never change. Once you're done (and you only need mix once!) you can spend from this mixed balance anonymously virtually forever.

Let me add to that the following: Even if someone actually spent the effort, time and money for the tiny chance of successfully tracing a transaction this would not break the entire system of PrivateSend. They'd have to expend the same effort again and again and again for each transaction with the same or even smaller chances (due to more Masternodes coming online over time). Thus Dash's privacy model consists of infinite points of failure if you will.

This does not apply for solutions like CryptoNote. Read more about that here and you will realize that obscuring an entire blockchain is a centralized point of failure and in the long term a recipe for desaster

Another thing, more of a sidenote: PrivateSend is not equal to "CoinJoin". It is heavily modified and extended and thus its own being. CoinJoin suffers from timing- and denomination-linking-analysis attacks, both of which Dash has fixed via before-time mixing and pre-determined denominations. Also mixing is much faster since our 12.1 release if you enable "PrivateSend Multisession" in the Configuration of your Dash Client.

I hope you feel well informed and enabled to make out the nonsense after this and recognize that Dash's privacy model is not only "good enough" as a privacy solution but also future-proof. A mixed transaction can never be traced retroactively. The last thing you want is a time limit on your anonymity.