Saying cryptocurrency is 100% a scam is like saying fiat currencies are 100% a scam. There are scams that solicit unwanted transactions of either fiat or crypto

Saying cryptocurrency is 100% a scam is like saying fiat currencies are 100% a scam. There are scams that solicit unwanted transactions of either fiat or cryptocurrency. Some entire currencies (both fiat and crypto) might only exist to line the pockets of their issuers, and can be called a scam. Neither fiat nor cryptocurrency are "100% scam and useless" though.