A handful of SDN-mentioned pools continue to have an “operator” authorization. Of these, two belong to quite outdated, now-unused versions of Tornado Cash. The remaining pools either have newer, immutable versions, or were being employed so minimal which they had been likely forgotten during the May possibly 2020 remaining update. https://palmersteak.info/understanding-tornado-cash-the-future-of-private-transactions-in-the-copyright-world/