So cryptocurrency is dead, right? After some brief interest around the middle 2010s, where some vendors actually did accept it, they seem to have all revoked their support for it. All that it seems to be used for now is scams, ransomware, and pump-and-dump schemes.
Far from dead. It's been growing rapidly, particularly the decentralized finance (defi) space. Number of transactions has been steadily going up in Ethereum: https://etherscan.io/chart/tx
As far as a way to remain untraceable (organized crime) or untaxable (the elites) the main use cases for crypto have moved on particularly to things (like designer handbags) that actually accrue value over time and/or are not numbered and tracked publicly.