Anything that enables the perpetuation of private property isn't anarchist.
Cryptocurrency is anti-state, sure, but that isn't the sum total of what anarchism is. Anarchism is against hierarchies of power. Excessive private property constructs a hierarchy of power.
There are ways to reform this, short of abolition. Taxes, for example, are one control, because they redistribute money. Regulations are another reform: rent control, for example, restricts the ways in which property prices can rise. There's also expropriation - simply taking away excessive private property.
All these things, which I suspect some of these new "anarchists" dislike, would be part of any anarchist society that allows the existence of any private property.
