Bitcoin's network is witnessing its most intense ideological battle since the 2017 block size war. The catalyst is BIP-110, a technical proposal that uses a soft fork to cap the amount of data allowed in blocks, directly targeting protocols like Ordinals and Runes that inscribe images, videos, and even code on-chain. Supporters call it a 'correction,' while opponents label it 'extreme conservatism.' The debate has spread from developers to miners, institutions, node operators, and even community leaders like Adam Back.
BIP-110's Origin and Target: From Temporary Observation to Hard Limits
BIP-110 did not emerge in a vacuum. In October 2025, developer Dathon Ohm proposed BIP-444 to temporarily limit non-monetary data for one year to observe network performance under low load. But after Bitcoin Core v30 removed OP_RETURN byte limits, purists felt betrayed, viewing it as a green light for blockchain spam. In December 2025, Ohm released the stricter BIP-110. Supporters argue these limits are not about stifling innovation but restoring Bitcoin's early technical prudence, unaffected payment and store-of-value use cases, squarely targeting what they call data abuse.
55% Activation Threshold Sparks Furor: Mob Attack or Decentralization?
What truly inflamed the community is BIP-110's activation threshold: only 55% hashrate support is needed to pass. Bitcoin's governance tradition requires ~95% miner support for major consensus changes, a norm followed by SegWit and Taproot. Proponents argue that the 95% threshold effectively gives a minority veto power; junk data cannot be cleared because a few stakeholders block it. The 55% threshold is a 'defensive activation' to break the upgrade deadlock. Opponent Adam Back calls it a 'mob attack on Bitcoin's reputation,' trying to force changes without broad consensus. With 55%, a simple majority of miners can force the remaining 45% to accept, risking chain split. More worryingly, if this precedent is set, could addresses be frozen next? Bitcoin's immutability would be hollowed out.
Camp Clash: Minimalists vs. Miners' Interests
Developers led by Luke Dashjr and users of Bitcoin Knots are the driving force behind BIP-110. Bitcoin advocate Matthew Kratter compares inscriptions to ivy — attached to the tree but eventually suffocating it. If block space is filled with images, blockchain volume grows exponentially, making it impossible for ordinary users to run full nodes on consumer-grade hardware, concentrating validation power in large nodes. Since the controversy, Bitcoin Knots market share has surged to 22.49%, while Bitcoin Core dropped to 77.39%, indicating nodes switching clients to support data limits.
Opponents include influential figures like Adam Back and Michael Saylor. Strategy CEO Michael Saylor warns that frequent protocol changes are Bitcoin's biggest threat. Blockstream CEO Adam Back argues that Bitcoin's greatest value is its immutability; if rules can be easily changed to suit some preferences, the credibility of 'digital gold' vanishes. Economically, the debate also reflects anxiety about long-term security budget. After halvings, network security increasingly relies on transaction fees. Dune data shows daily fees from inscriptions have fallen below $10,000, but in December 2023 they contributed nearly $10 million in a single day. Miners don't want to close any revenue stream; market cycles shouldn't justify protocol changes.
Fee Market Imbalance and Governance Slippery Slope Risks
The decline in inscription fees gives proponents ammunition: since economic benefits are now minimal, cleanup offers network optimization (smaller UTXOs, lower node pressure) with better cost-benefit. Deeper logic: the current SegWit discount mechanism effectively subsidizes non-monetary transactions — storing 1MB of image data is cheaper than sending an equivalent monetary transaction. BIP-110 aims to end this 'unfair competition' by setting data limits at consensus, forcing low-value data into more expensive non-discounted space or off-chain. Proponents say only then can the fee market recover, ensuring that monetary transactions willing to pay a premium for global consensus are prioritized.
However, if BIP-110 passes with its temporary and low-threshold label, it could break Bitcoin's institutional trust. Institutions prize rule immutability. Once the precedent is set, could asset freezes or forced fee adjustments follow? This 'governance slippery slope' is what Adam Back and Michael Saylor fear most. For Bitcoin, a protocol with junk data is still better than one that can be altered at will — the latter is unpredictable, while institutions seek certainty. Additionally, BIP-110 could make certain existing UTXOs dead money, effectively depriving some users of property rights, potentially exposing miners to legal claims of interfering with private property.
BIP-110's activation remains uncertain, especially with the 55% threshold challenging Bitcoin's governance tradition. The biggest takeaway: it forces the community to confront what Bitcoin's mainnet should carry. Bitcoin's greatest value isn't that it never changes, but that every change undergoes rigorous scrutiny. Future Bitcoin may become purer due to this debate, or open a new chapter of diversity. In this defense of digital gold, every node operator casts their vote with their hard drive and bandwidth.