I don't think I have ever said the ring sig store vulnerabilities are a new discovery. I frequently point to prior discussions of that vulnerability and other ones in the Breaking Monero series and on monero.com. I hereby acknowledge it in this very post, which adds one more acknowledgement to a long list. So you can no longer say I refuse to acknowledge it. Also, untraceability is a precondition for fungibility, because tracing X through a blockchain requires identifying X in a crowd. Monero can be traced through the blockchain, therefore an xmr token can be identified in a crowd of other xmr tokens, therefore it is not fungible.