The Seinfeld currency.. A currency from nothing.
Worse than a currency from nothing: a currency that specifically takes WASTE to generate. Wasted energy and CPU cycles on a worthless algorithm. They could have at least had it doing folding or something. Instead it is just waste - and not even backed by the force of law.
The main reason it has gained any value is because drug dealers and hackers (like cryptolocker) like to use them. Yay.