With a very different set of tradeoffs. MW does not provide anonymity. It provides, at best, pseudo-anonymity with coinjoin mixing by default, with N=2 in the i

With a very different set of tradeoffs. MW does not provide anonymity. It provides, at best, pseudo-anonymity with coinjoin mixing by default, with N=2 in the implementations being considered. Careful repeated application with the right counter-parties can compound that into larger anonymity sets. That's a step forward from bitcoin, for sure. And if you're very careful, it could achieve whatever privacy requirement you might have. The Zcash-like approach on the other hand is to provide a transaction mode where your anonymity set is everyone who has ever transacted with the system before. That's N=everybody; the source of funds is entirely obscured. The two achieve totally different goals, with a different set of tradeoffs. Apples to oranges.