ChainCatcher reports that CZ responded multiple times on the X platform regarding previous on-chain contract testing, stating: "On-chain trading is not as good as CEX. My understanding of futures is that you never want others to know your liquidation price." He also emphasized: "Decentralization and privacy are two different things. They can be implemented simultaneously, for example, by using zero-knowledge proofs."
Previously, CZ responded to "using BNB long Mubarak": conducting the first on-chain contract transaction to check for potential MEV issues.