What is the worst cryptocurrency?

In my opinion the absolute worst cryptocurrency that has ever existed was Cryptsy Points (POINTS). In hindsight it is rather easy to justify that opinion. Cryptsy Points were the internal cryptocurrency used by the now defunct Cryptsy exchange. After Cryptsy went bankrupt it became clear that Cryptsy points were just used to keep a crooked exchange that embezzled money afloat and I think it is safe to state that everybody who invested in Cryptsy Points regretted it when Cryptsy shut down and the truth about the exchange's financial misdealing became public.