A Handful of SDN-listed swimming pools nevertheless have an “operator” permission. Of such, two belong to very outdated, now-unused variations of Tornado Cash. The remaining pools either have more recent, immutable versions, or ended up applied so tiny they had been very likely neglected through the May 2020 ultimate update. https://www.fourdo.info/how-tornado-cash-enhances-privacy-for-ethereum-and-bnb-transactions/