User blog comment:Fusedtwilight/Season 9 plot/@comment-6637171-20130516112250/@comment-107.201.17.202-20130518012932

If my understanding of curing a demon is correct, than  by no means has Crowley now become human. He is still a full demon (or at least a spirit) as the purfication would only restored his human morals (i.g. humanity) as I doubt he actually turned into human as had happened to Cas.