Some devs of some pretty important coins seem to refute this claim.
There is really only one "important" coin and that's Bitcoin, maybe. It has something like 95% market cap share (though it only a minuscule near-zero market cap share compared to fiat banking). Its developers have certainly not refuted the claim that PoS is a sham when it comes to any sort of real long-term decentralized security.
The rest are long-shot attempts to become important, with varying degrees of scamminess and developers who are varying degrees of full of shit in promoting their coin/agenda/sham. That certainly includes both of the coins being discussed here.
Important in terms of alt coins i should have said.
So POS is a sham? it's as clear cut as that? can you explain why? does it not help mitigate some of the vulnerabilities of POW only?
Why are coins like PPC and blackcoin etc not attacked more regularly? or will it be more of a long term issue they are facing?