Bitcoin and cryptos ought to be banned for good. Cryptocurrencies are scam and outright bubble that will bring down the world economy. There is no currency without an authority to guarantee its value. Cryptos are pure bubble. If there is any good in this thing, it's ease of transaction, which is a question of underlying technology - it has nothing to do with lack of authority or decentralized scheme that cryptocurren…
But maybe you can go back in time and buy some and you won't be so salty.