According to @adam3us, some Bitcoin Knots proponents may prefer operating blocks-only nodes to reduce exposure, likening the setup to leech mode in peer-to-peer file sharing, source: Adam Back via X. In blocks-only mode, nodes do not request or relay unconfirmed transactions and synchronize primarily through blocks, which limits local mempool visibility used for fee estimation and confirmation targeting, source: Bitcoin Core -blocksonly documentation. For BTC traders, reduced participation in mempool relay can make widely tracked fee-rate and mempool-size indicators less representative during congestion, affecting predictability of on-chain settlement times, source: Bitcoin Core -blocksonly documentation. Short-term execution strategies that rely on unconfirmed transaction flow should incorporate multiple full-relay data feeds or direct miner interfaces to mitigate blind spots, source: Bitcoin Core -blocksonly documentation.