Nearly all cryptocurrency investors are down nearly 99% from their cost basis. When a 40% tax regulation comes from global exchanges, it means crypto is finished in Turkey. Cryptocurrency is an investment type where everyone assumes their own risk completely, not trade/commerce. Theoretically, there is no difference between Gold, Silver, and Cryptocurrency. Either 40% tax should be collected from every investment, or cryptocurrency should be taxed at most as much as commodities are taxed.