On February 24, CZ said in response to the reasons for the previous on-chain transaction failure that he did not use private RPC and would encourage builders to eliminate this MEV problem. I know that saying this may cause some sniper complaints, but for most users, it will be better. Previous news, some analysts pointed out that a certain address snatched CZ's on-chain transactions but was hit by a clip, which eventually led to the failure of CZ's transactions.