According to @Excellion on X on Oct 5, 2025, fighting mining centralization is structurally difficult due to energy centralization and economies of scale, but active efforts continue to counter it. According to @Excellion on X on Oct 5, 2025, current work includes open-source ASICs, enabling miners to create their own block templates via DATUM and Stratum v2, and protocol optimizations intended to level the playing field for smaller miners. According to @Excellion on X on Oct 5, 2025, spam cannot be eliminated 100% but can be mitigated, and mitigation steps are the practical objective.

According to @adam3us, Bitcoin mining pools that do not filter JPEG-related transactions could be unprofitable even in the short term compared with filtering, underscoring immediate incentives for content filtering in block templates; source: X post by @adam3us on 2025-09-05 https://twitter.com/adam3us/status/1963847304361742407. He highlights centralization risks, noting there are few pools and that solo miners and small pools may not be in key lists, which concentrates decision-making over transaction selection; source: X post by @adam3us on 2025-09-05 https://twitter.com/adam3us/status/1963847304361742407. He adds that with Stratum v2 and datum configurations, larger setups can scale without miners themselves choosing blocks, shifting practical control over block composition; source: X post by @adam3us on 2025-09-05 https://twitter.com/adam3us/status/1963847304361742407. For BTC traders, these points directly concern transaction selection and miner incentives that shape block templates and fee flows, so monitoring mining-pool filtering policies and Stratum v2 rollout is pertinent; source: X post by @adam3us on 2025-09-05 https://twitter.com/adam3us/status/1963847304361742407.