You have written a good quality article .i can fairly understand every point made by you .

The Central Bank warns that this cryptocurrency has a negative effect and is not safe to trade, even though many people become rich in an instant

Yes that's true . I think banks are not able to regulate the crypto transactions and there have been some negative issues that were highlighted about cryptos otherwise cryptos are Currencies of future. The concept of digital currencies by central banks stems from cryptos .

Good luck