That's a centralized, for-profit company that is using clever cryptographic technology to obfuscate transactions. In twenty years, when NSA breaks ZK-SNARKS, everything anybody has ever done on their blockchain will be revealed. Every transaction ever made will be readable.

Dash uses a mixing technology to obfuscate transactions, rather than relying on cryptography to obscure them. Transactions are obfuscated instead by mixing the inputs, so that it will never be clear who made what transactions. We are future-proof. They are not. Maybe nobody ever breaks ZK-SNARKS, but if they do...