Funny, while looking up info about coinpool, I was reminded of joinpool, found Harding's writeup on optech here: https://gist.github.com/harding/a30864d0315a0cebd7de3732f5bd88f0
which referred to a discussion by gmax on IRC here:
https://gnusha.org/bitcoin-wizards/2019-05-21.log
... only to discover that I was the guy he was discussing it with, and I had 100% forgotten having that conversation 😆
Do you think coinpool/paymentpool can improve coinjoin?
I've always been doubtful about the idea of having larger groups regularly coordinating over the network.
Current coinjoin has very big coordination groups, but it's one and done, and i think that matters a lot.
If you just look at Greg's explanation of joinpool in that chat, it's clear that it represents a way better kind of wallet, in privacy terms - *if* you ignore the first above sentence.
Riard and Naumenko's coinpool concept was a lot more ambitious in trying to be a full off chain protocol, but iirc they proposed 2 or 3 new opcodes within their scheme.
