Privacy Coins
All of these have very solid tech.
They are just a cryptocurrencies, No need to name them privacy cryptocurrencies. Money is to be fungible, so it need opaque ledger. Transparent ledger cryptocurencies cant be fungible and should be named transparent ledger cryptocurrencies, while opaque ledger cryptocurrencies are just normal cryptocurrencies.
You would be surprised about AEON tech.
AEON is a lightweight outdated version of Monero.
And, if you want to argue semantics, make sure your grammar
is on point.