Thanks for your inputs. I wonder if delaying the UTXO from the coinbase of a new block helps with mining decentralization though. Let's assume the delay increases to a month. Well then, the AlphaPool with ~30% of the hash rate of #blake2b will continue doing what it is doing, just get their sats with a delay, dump the coin if needed. In any case, a miner dumping too much of their coin, is never an interesting use case. It would mean that the price could dump also, meaning mining in and of itself is not a lucrative business anymore. Then you have to shutdown your miners. Difficulty adjustment kicks in again. This whole procedure has been working fine for years. On a general note, I don't think miners of #BTC on #blake2b are interested in sabotaging the network. If that is the case, they will only "pump and dump" it once, so to speak. Maybe that is their goal? I don't know. I believe making mining less attractive has always been a built in feature with a combination of coinbase UTXO delay + difficulty adjustment + #bitcoin price.