They really can't, due to the fact that Destiny has soo many network error codes that result in players getting sent to start screen they would not be able to prove if user as booted due to game. People can quit a game whenever they want no one can go after you for doing so. The game shouldn't lag spike because host leaves.. blame Bungie for poor load balancing code. Stop trying to scare people because you are self righteous. You beat the raid legit and realize its a joke so if other people want to not waste time let them do what they want...