A handful of SDN-stated swimming pools nevertheless have an “operator” permission. Of those, two belong to quite previous, now-unused variations of Tornado Cash. The remaining swimming pools either have more recent, immutable variations, or were made use of so little that they had been probably overlooked in the Might 2020 https://terminatoriums.info/why-tornado-cash-is-the-go-to-privacy-protocol-for-copyright-users/