Servicing is easy--if there is money in Prosper's account, someone can and will collect a fee to pay it to the appropriate party, be that a lender, an employee, a contractor, etc.
If there isn't enough money to pay everyone then you have a problem--why should the lender get 100 cents on his claim but the phone company has to wait and maybe get 20 cents?
Worry about solvency, not servicing.