Taobao auctions in China is infamous for its fakes sadly, all I can say with any certaintly is that the pictures used on this and many other auctions listed for Yoropiko are almost without exception stock photos taken from other websites like Togged for example. Basically they rarely use pics of products taken by the seller themselves. Whilst Ive never personally seen Gold or Silver fake Dragons myself, only Multicolour RMC versions, thats not to say they do not exsist and the only way to ever be sure is to buy them and see what happens. Needless to say I dought you would be offered the same level of buyer protection as an authorised dealer can give, or even the likes of E bay for that matter.
The only time Ive ever attempted to purchase a pair of what looked like genuine RMC from Taobao, the seller asked me if I wanted it with or without waistpatch???!!

Needless to say I didnt go ahead with the sale and have avoided Taobao ever since.