But is a soft fork necessary to do this? Couldn't the spam be filtered by nodes directly?
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a soft fork like bip-444 changes consensus rules so all nodes reject oversized data txs outright, preventing them from being mined or stored on-chain at all—node filtering alone lets spammers pay high fees to bypass it, creating a cat-and-mouse game that fragments the network without true enforcement.
critics argue filtering works fine now (e.g., via policy rules) and forking risks censorship without solving root issues like legal data storage.
cointelegraph
the block
https://www.theblock.co/post/376184/bitcoin-proposal-to-curb-spam-with-a-temporary-soft-fork-sparks-debate-among-developers
Cointelegraph
F2Pool Co-Founder Refuses Bitcoin Anti-Spam Soft Fork
Chun Wang, co-founder of F2Pool, slammed Bitcoin’s BIP-444 soft fork proposal to limit non-transaction data as a “bad idea,” saying he refuse...