If there's no mining in NXT, how exactly did the coins get distributed? Someone mentioned that people bought them initially. So the developer made BTC off of selling his premined coins? At least ripple gave some away for free... 
Initial IPO of NXT was only 21 BTC.
PoS must be initially distributed- it lies in its nature. The way BC did it was very smart : Proof of Work.
There's nothing shady with these. Just a lot of misunderstanding usually.
So how many people exactly received NXT in this initial IPO? probably just the dev and a close circle of his friends. This BlackCoin thing doesn't seem much better either. How long did the mining period last for? Probably only a few people got their hands on them before mining ended, which is weird as the coin is like 2 weeks old.
LiteCoin has a better distribution than both of these, and people can still mine them with GPUs. As far as I can tell, this BlackCoin only has pump-and-dump potential at the very most.