I think that's a weak argument. All of the currencies listed in the article are limited to local purchases. At first glance they all seem to be paper money as w

I think that's a weak argument. All of the currencies listed in the article are limited to local purchases. At first glance they all seem to be paper money as well. They clearly solve none of the problems that concern crypto-enthusiasts/non-keynesians. No, the reason I never hear about them is because they are limited in scope and simply defer power to another authority.