If this certificate idea becomes integrated, it might make more sense to create an entirely new coin without basing it on existing source code, so that "Curecoin 2.0" would be built from the ground up around certificate-based coin mintage, and also to provide a simpler platform for forks of that new source to merge-fold with us. Food for thought.
It's a very bad idea. Current Curecoin 1.0 miners/folders would lose even the slightest interest in the coin. Its inevitable collapse would make Curecoin 2.0 a high-risk asset from the very beginning.
Actually, I'm afraid that even the fact the you presented such an idea in public will drive the price of Curecoin below its current low values.