It's a sad state of affairs when you can only trust a product's legitimacy if the description states it's authentic, isn't it?
I feel that if you're selling something and stating it's X brand, then it should be authentically that brand. Although I'd love to see "Fake MAC Brush Set" on ebay
But it's the same with other brands like Tiffany & Co or Tokidoki.. Ebay is full of fakes, using crappy pictures of products that are obviously fake to anyone who takes the time to research... But obviously there are a lot of people paying a lot of money for fakes because they don't know any better