It clarifies that the mechanism is not designed to synchronize the mempool across different nodes, particularly in scenarios where miners accept fees out of band (i.e., not through the standard transaction fee mechanism within the blockchain). Such transactions that miners are compensated for outside the typical process are unlikely to be shared or advertised using weak blocks due to the risk of other miners capturing these fees, highlighting a significant disconnect from the goal of mempool synchronization.

The text also points out an inherent issue with the proposal related to the "first seen" rule employed by mempools when dealing with conflicting transactions. In blockchain systems, the mempool typically accepts the first instance of a transaction it encounters when multiple conflicting transactions are presented. The proposed approach, which involves using proof of work (PoW) as a means to prevent denial of service (DoS) attacks and to expedite block propagation, does not inherently provide a method for determining the chronological order of transactions. This absence of a reliable mechanism to establish transaction precedence could undermine the censorship resistance of broadcast transactions. Furthermore, weak blocks—blocks with a lower difficulty threshold than those included in the blockchain—are not considered a robust solution for resisting censorship or conclusively establishing the sequence of transactions.

Lastly, the correspondence acknowledges the existence of Braidpool, a concept posited as a more comprehensive solution aimed at addressing some of the shortcomings identified in the current discussion, such as incentivizing the publication of hidden transactions. While the sender does not claim their proposal addresses all issues related to transaction relay and mempool synchronization, they express interest in discussing Braidpool as a potentially more effective approach to these challenges. The mention of Braidpool suggests a recognition of the need for more ambitious solutions to enhance the transparency and efficiency of transaction processing in decentralized networks.