Think the solution is to outlaw IDB for overbooking. This is similar to letting airlines sit a plane on the tarmac for hours with all the passengers stewing ins

Think the solution is to outlaw IDB for overbooking. This is similar to letting airlines sit a plane on the tarmac for hours with all the passengers stewing inside. Once they had to start paying penalties they quit doing that. In this case, denying IDB would force the airlines to pay the passengers whatever it cost to get them to voluntary leave the plane. This constitutes a penalty for overbooking to the point where they have to refuse carriage, and also just compensation for those inconvenienced.