As practice has shown, unfortunately negative (my country suffers from external aggression) - our cash or money in stable currencies (dollar, euro), turned out to be the most liquid means for purchases. How can you pay with cryptocurrency - if your city is destroyed by barbaric bombings, and there is no communication, even primitive mobile communication. Probably cryptocurrency, in such a situation, can be considered only as a safer mechanism to take out your assets/savings, without the risk of being captured and searched by the invaders, with the loss of all found fiat money or jewelry....
not to worry DrBeer. it looks like the Ukr vs Rus is going to end soon though.
G7 already stole Russia's foreign reserve of $20B and gave it to Zelensky. hows that for the payment of the land that Russia will take. sooner i think they will call it quits. 
i doubt Zelensky is going to give it to Ukrine though. his wife gonna buy more luxury cars after the war.
don't go playing with words like they always do. you gotta see thru it. when they say Israel move swiftly to Syria's buffer zone. Its call invasion.
and when news is about Russia, Russia invades more land. you're old enough to be tricked.
Hello victim of raschist
* propaganda

1. There is no war of Ukraine against Russia. There is a terrorist attack by Russia, led by the Rashist junta, against independent Ukraine, for the realization of painful ambitions, a pathetic parody of his idol Hitler, Putin (an international criminal)
2. the assets of the terrorist country were not stolen, but were legally seized, to finance and pay reparations to the aggressor country. Reason ? It is banal - from the side of the terrorist country it is a violation of the Budapest Memorandum, from the side of the EU - within the framework of compliance with international law.
3. your assessment - let's be honest - is purely subjective, and has no argumentation, you just want to smear Zelensky, a man who played in KVN, was a humorist, was never a politician, and who crushed “the great Putin” just like a bug

Humorist put in place a huge country, with a bloody tyrant at the head, which in fear keeps 100 million of its citizens ! Although I will say right away - I am not a supporter of Zelensky, and I have arguments for this
4. your pathetic attempts at manipulation are expected

It is very funny to see how you try to link Israel's invasion of a country from where it was attacked with the fact that the terrorist country attacked Ukraine for the same reason

I'll say it again - you look very stupid and everyone can see it
*Rashism - is the Russian version of Nazism.