Originally posted by Peter Zack , allow the ref to judge a real incident vs a fake one and award a penalty kick.
I don't understand what you mean here. I reffed for a number of years but I can't seem to locate my most recent FIFA rulebook. The ref has a split second to make the call: Foul or no foul. A lot of players will dive to try to convince the ref there's a foul. What you see is often determined by the angle. And the rule is, if you don't see it, you can't call it.
Case in point: Once I was reffing a U19 boys game. The ball was coming at a player at chest level. I was in the perfect position to see the action. The player's hands came up, but right at the moment of contact, another player stepped between me and the action. I could assume the player hit the ball with his hands, but I didn't actually see it. What if I had made the call and his hands were to the side and the ball hit his chest? That call still burns me but there's nothing I could have done. I did not see it.
With diving, the ref has to decide foul or no foul. If it's no foul, play goes on. Eventually the diver learns the ref won't fall for it and they get back to playing as diving wastes a lot of playing time.