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This is a great post for newcomers like me. Many people think that they make money, but if you look at their total net worth in Bitcoin terms they lost both money and time by trading on so called shitcoin casinos. Because mining Bitcoin is costly, it is not smart to waste your energy on a fork that won't earn you any money, however with Proof of Stake, it is free to mine a fork. It was such chaos, it's funny to read again. This class of cryptocurrency is either insecure or centralized, however proof of stake based on a PoW currency is useful in some systems because gaining stake is costly, but it isn't workable for bootstrapping distributed consensus.