[BIP Proposal] Stale Tip Relay

The ongoing project to document mainnet stale blocks is a significant initiative, which involves the continuous monitoring of long-running nodes due to the absence of a mechanism to recover these blocks directly from the network. This documentation effort is available for review and contribution on GitHub at this repository. The purpose behind this monitoring could be seen as beneficial from a research standpoint; however, concerns have been raised about its impact on the core functionality of the Bitcoin network. Specifically, it might increase vulnerabilities to DoS attacks and fingerprinting tactics.

Additionally, complexities arise in how the design handles multiple competing chains. The current messaging system is tailored to relay information about a single branch of competing blocks, which may not suffice in scenarios where there are several active forks within the network, such as commonly seen in signet and testnets. These practical challenges highlight potential shortcomings in the proposal's ability to effectively communicate between different branches of the blockchain.

Furthermore, detailed technical and editorial feedback has been provided in the bip repository's PR section, suggesting that while the initiative is underway, there are significant aspects that need reevaluation or enhancement to ensure it aligns more closely with the network’s primary objectives and operational safety.