It's basically selling debt.
Or at least something like debt. It is a fixed payment, quasi interest barring debt (actually not interest but fixed cost).
Neither of these explain it to me like I am five years old. Could someone please be very explicit about it? I'm sorry that I don't understand; I am just so naive about anything related to money.
What would it mean if I were to click one of the buttons that says BUY on the Open Sell Orders? What would happen?