Because once that centralization occurs, the remaining trustlessness doesn't serve a purpose. All that's happened is switching from one centralized system to a

Because once that centralization occurs, the remaining trustlessness doesn't serve a purpose. All that's happened is switching from one centralized system to another, but with a much, much greater overhead. Mind you, I don't mind centralized systems, but the entire marketing of cryptocurrencies for the past decade has been how it is decentralized and outside of the the reach of any entity. We knew this wasn't the case in 2014, when Mt Gox folded and all signs pointed to fraud. We knew this wasn't the case in 2016, when the Dao smart contract was reversed by general appeal. We know it now as mining pools continue to rise. The decentralization is the main selling point of cryptocurrencies, and yet at every turn it is proven false.