I love the concept and believe it has potential to become a huge success. But how do you intend to deal with abuse? If i understand correctly, you could potentially use two accounts to sell "digital goods", such as e-books repeatedly to yourself while receiving tokens as both buyer and seller. If you live in EU you could also use your right of withdrawal to issue a refund/return, while still keeping your stors tokens. I see the vision and LOVE the idea, hopefully you have it all covered :))
Very good question. Every completed transaction pays a 7.5% final price fee. So, that should represent a barrier to abuse. Once and IF the price of STORS exceeds the 7.5% fee; then the auction based use of STORS token for upvote bidding should also further deter abuse.