Is the source for this open? And is there currently a home for CraftCoin? I tried checking out the links OP posted, but they were 404. I have a developer, and plenty of hosting resources, and would be willing to put work into CraftCoin to keep it alive. Also, what work needs to be done with it?
Not much to the coin itself needs work.
I think the shorter block times has dealt with the diff spikes. The heartbleed patch has to be implemented I think.
The real thing that needs work is to actually have a Minecraft bukkit/Server plug in created OR a website(php/drupal/etc) plug in needs to be written. Something that will have a Deposit system that ideally would then after a few confirms add in the server.
I believe the Original Dev did this manually. He had a website that you put in a CRC address and your username. Then he added the currency to your Username on the server.
If we could get MC servers to start using this, it could be huge. I kind of hated moving to new servers and losing all my earnings.