

Some users could just pay to become Premium Sellers themselves just because they'd be able to deceive new users into pressing on their viral/harmful links and would be able to scam them for much more than just $100 (profit). (Yes, new users can be really naive. You can just tell them that you're a Premium Seller, have a fancy tag on your profile and they'll treat you as if you're an Administrator, lol). Just pointing out the most dangerous downsides of your idea! 