1) Some mixers already have a Know Your Transaction (KYT) policy, will they get banned?
Yes.
Is it enough to add the phrase “The mixer can collect KYC data” in the terms of use?
No. They have to be collecting KYC data from all senders.
TornadoCash
I'm not familiar enough with how Tornado Cash works/worked. It meets criteria 1 and 3, but for criteria 2:
- If every member of the DAO turning evil would allow it to adjust the contract and steal BTC, then it's a banned mixer.
- If going to the website and using the website directly to do the mixing would allow the deposit to be stolen, then at least the
website would be a banned mixer. (Perhaps the contract itself wouldn't be.)
- If neither of those are true, then maybe it's more like CoinJoin than a mixer, and it shouldn't be banned.
Based on vague knowledge which I have casually absorbed, I'd
guess that both of the first two points above are true?
theymos, what about this?
Also I should point out, it should not be ban-worthy to link to a closed mixer's ANN thread. Or actually to any post in the ANN thread that is not advertising to use the mixer.
Defunct mixers' ANN-threads probably won't be locked. Non-promotionally linking to a mixer's ANN thread will be allowed, whether or not it's a defunct mixer.