Anonymity and decentralization are two different things, you can have one and not the other. For example, Bitcoin and most other cryptocurrencies has decentrali

Anonymity and decentralization are two different things, you can have one and not the other. For example, Bitcoin and most other cryptocurrencies has decentralization (mining) but only weak anonymity (all transactions are public). The decentralization is most of the cost, but adding anonymity (like zcash) adds even more cost with larger transactions.