A handful of SDN-shown pools nevertheless have an “operator” permission. Of such, two belong to pretty old, now-unused versions of Tornado Cash. The remaining pools both have more recent, immutable versions, or were being used so minor which they were being very likely disregarded throughout the Could 2020 last update. https://credits-imvu.com/why-tornado-cash-is-the-go-to-privacy-protocol-for-copyright-users/