I agree with everything Eagle just mentioned. I believe
Fashionphile has good authenticators. Sometimes people buy things in the heat of the moment, bring it home and after the return period realize it does not suit his or her lifestyle. It's better to get some $ back and use the proceeds for something else rather than just have it sit in the closet or jewelry box.
It's great for people who buy in the resale market because you can buy beautiful items at less than retail. And if you decide to sell, you do not realize as much of a loss. I recently got a steal on an Hermes silver bracelet with a gorgeous agate cameo of a horse. I got the item at half off the reseller price because the store took terrible photos of the item. I KNEW what it was and purchased it. It was not returnable. But I did not care.