Bitcoin's Spam-Limit fight is a case study in how hard Decentralized Governance really is Bitcoin's long-running argument over how much non-payment data should be allowed in transactions has produced one of the clearer real-time tests of how proof-of-work networks actually make decisions and so far, the numbers aren't kind to the side pushing for change. The proposal at the center of it BIP-100, would temporarily cap the size of arbitrary data fields in BTC transactions,…