Right, but since they have the XPUBs, it’s possible that in the future they will require merchants and exchanges (and perhaps services like nostr:npub1casacasahesdrpu6npfth2t0ae37a2cdwwg3c4fkt30v7gzffx3q7wtzdc) to trace history and block funds that were previously involved in a CJ implementation. It seems it has always been their goal — to reduce fungibility by inventing a pretext like “taint.” They don’t have to seize funds if they make them unacceptable.