To make a reservation (a pledge) of future purchase, the potential buyers are charged small fee. This makes the reservations a bit more reliable, as no one thro

To make a reservation (a pledge) of future purchase, the potential buyers are charged small fee. This makes the reservations a bit more reliable, as no one throws money just like that. The seller doesn't consider these as actual purchases yet. It is only a demand aggregation, meaning grouping people that care strongly about the price. After the deadline or max quantity, the item closes. At this point the seller gives real payment instructions, but at a different price. Of course there is the risk that not all will complete the purchases but isn't that already included in the price? The seller can count lets say a 50% completion rate already when making the prices? What you described is awesome and a real hacker's view. I think it is very cool and have to admit I have been thinking similar in this direction at the beginning. But.. I have an obvious problem getting this solution explained to a hacker community (see my comments here). I wonder how I would explain the solver to consumers and sellers. :D I need a solver for a headache later. Thank you for awesome reasoning and comment! For sure will think about it deeper now.