I did not do very detail research but from what i have heard, bitcoin gold has no backing, it is purely incorporated so that people can make some free money. Unlike bitcoin cash, there is no strong community support and belief to keep it running. In fact, the dev once try to run the ico using the same token but it ended up failing and so now they are using this to reach out to the masses. And they have been changing the snapshot date so that they can premine to gain more bitcoin gold.