On the mobile site, playing for coins, you loose them when you forfeit. You (the non quitter) have to wait for the game to reset in order to not lose them.
This reset is where the frustration comes in. Usually takes up to 2 minutes which is a long time on the Mobile app when we're conditioned to take a shot within 45 seconds.
Now, quitting because there's someone breaking into your house, or your wife is smoking hot and her headache has disappeared, I'm okay with that. Its the clown who checks out after three strokes in the bunker! The idiot knows the game is over and doesn't play it out. I think you could identify that dirt bag by tracking how many times he/she has done it.(Quite) After so many forfeits, they get a scarlett 'Q' placed on their profile! For all to see!