| There are a few reasons. 1. Audibility. I know for certain that my BTC is safe, sitting in a UTXO that everyone in the universe can see. Counterparties can verify the provenance of the coin. With Zcash and Monero, you face the risk of (invisible/unknown) inflation (a property of an unauditable supply), protocol bugs (such as failures in the zkp) and counterparty rejection due to lack of coin provenance. This risk affects the market price. Both these scenarios have happened, and could happen again. The first generation of ZEC had a broken zkp, which could be traced back to errata in the academic paper. [1]
XMR (and other CryptoNote deriv coins) were failing to check for low order keys, so you could 8x-spend tx's. 2. Lack of exchange exchange support for US people, eg: real USD into XMR. 'not on coinbase'.
* Kraken does XMR, but they also do not have a bitlicense (NY residents are blocked).
* Gemini only has ZEC [1] https://electriccoin.co/blog/zcash-counterfeiting-vulnerabil...
[2] https://jonasnick.github.io/blog/2017/05/23/exploiting-low-o... |
https://www.getmonero.org/2020/01/17/auditability.html