F2Pool co-founder Wang Chun stated in an article on the X platform that Bitcoin protocol upgrades should not follow the approach of US politicians using "bundled legislation" to forcibly push through "some necessary but unpopular clauses." This is a key reason for his opposition to BIP-110 and BIP-54. When asked about any issues encountered when using any fixes with BIP-54, Wang Chun added that the "timewarp" attack is a long-standing problem that offers no significant advantage to miners because it's impossible to predict who will be mining the next block. Its only practical use is interfering with certain altcoins. Since it offers almost no real benefit to Bitcoin miners, there is no urgent need to modify it. Furthermore, block verification efficiency has been significantly improved by libsecp256k1 and hardware upgrades, requiring no protocol-level adjustments. The "forged confirmed transaction" problem essentially relies on cracking double SHA256 collisions; if successful, it means Bitcoin's core security has been compromised. Wang Chun added that none of the above issues are sufficient to drive protocol modification. Currently, only the "duplicate transactions" problem has some value for fixing and may be one of the few worthwhile changes to implement.