This is a truly great project that should be applauded. Technology wise I'm not impressed. That's the part I'm most bothered with. If you take a look a upcoming developments of a project like Dash, it is virtually impossible to compete. But if enough people joined the project so that they can help the charity, then I can see the project being kept alive.
Dogecoin started out as sort of a meme. I'd like to think that people will be more interested in making the planet a better place than having some fun with a meme. Wish them success. Resteemed for extra visibility.