Someone asked me in a PM for my opinion of VanillaCoin. I just expended 15 minutes studying it for the first time:
https://bitcointalksearch.org/topic/unofficial-vnl-vanillacoin-041-instant-incentivized-innovative-977245
The DarkPP stuff is vaporware and no details are available.
It claims some efficiency improvements over Bitcoin and Peercoin. Appears the developer is a seasoned P2P networking programmer. If I had to venture a guess, he probably was a former developer of a Bittorrent client.
The main feature of significance is the zero confirmation time research which attempts to gain a faster consensus. Unfortunately he seems to entirely forget any game theory analysis. The Byzantine fault tolerance in proof-of-work consensus is due to game theory incentives given by the proof-of-work rewards. He expects these peers to behave a certain optimum way when they are not being paid to do so. Many faults will be found in his design because of this. I don't have time to go outline the faults.
Satoshi was a lot more astute than many people might realize. If you are going to improve upon Satoshi's work, you need to be very sharp.