The only proof that it's fake I can see and believe is the meta-data thing, though some people are arguing that there is a slight chance this might not be the case. Anyway, I've admitted you were most likely right on the part that CoG is a fake, but...
I don't see any other proofs. And I still don't agree with your argument that "it sounds weird and gramatically incorrect" (for you) is any sort of proof and this is the part I disagree with.