I have just had an issue occur today that I know affects other DM's. I had players who are friends with each other apply for a game through an application and get accepted. The 2 players in question with less than 24hrs till the game (at differing levels of character creation, but 70% complete) said they were leaving the game before the first session! This is very disappointing, and discourages DM's putting effort in to create good detailed games. My suggestion an anonymous player rating system only players with paid accounts, can vote and see ratings. At least this may discourage people from waisting DM's time. Obviously they could create another account if they were desperate, but im sure there are ways to fix.