One undesirable scenario that comes to mind is the Facebook et al consortium deciding to break the peg after achieving a large balance of credits. As near as I

One undesirable scenario that comes to mind is the Facebook et al consortium deciding to break the peg after achieving a large balance of credits. As near as I can tell, there is nothing stopping them from de-valuing the currency at a whim in the interest of reaping a short term profit. Such things happen all the time with reward points/airline miles/etc.