That's just to show us how stupid we are:

ReddCoin

Altough mentioned by @haejin several times, their last post is from september 6th 2014 with the following announcement:
"The three goals have all been achieved so it’s time for us to enter stage two: the buildout of services to make Reddcoin actually useful.This is what Social X is meant for."
Untill now they didn't deliver anything