This is a cryptocurrency that is being sponsored by the GNU foundation and may well become an integral part of future open source applications.
Yet it has no blockchain, instead it relies on centralized exchanges to keep your money safe.
You will also need to dox yourself in order to receive these coins.

It's a huge step back and their reason for doing it is expressly to allow the government to verify your purchases are legitimate and that you're paying your taxes like a good little slave. It also means they can freeze your funds if you're a merchant and selling anything they don't happen to like. Merchant here could be a bit loose. A publisher selling a copy of the anarchists cookbook could have serious issues here though.