"Gold is just another fiat currency". Did you come up with that or did you read it somewhere? If you read it somewhere, I'd love to read that article.
All gold is IMO is a hedge against inflation by tying your monetary policy to the rate at which you can dig some shit out of the ground. Not remotely sane IMO.
It would be like basing the value of the dollar on corn. At least corn would have some real value though (fuel, food, etc.).