5 Minutes after NuBits rel, PPC Crash from 0.038 to 0.030 
Why??
Why??
Classic buy the rumor sell the news. The fact that the details were kept secret pretty much sends the message (intended or not) that the news may not be live up to the hype. This indeed, turned out to be true.
The secrecy was to retain first mover advantage. As was said, read the whitepaper in full and maybe you'll change your mind.
Nu is a clever system, but as soon as its details were revealed, it was obvious that it isn't going to have any direct impact on the PPC price. Sure, it will pay dividends in PPC, but that's not a net buying pressure. It could indirectly help PPC price by bringing new people into the ecosystem, etc, but paying dividends in PPC creates selling pressure (people cashing their dividends out) which exactly cancels out the buying pressure that comes from the Nu system acquiring the PPC in the first place.