[HDPM]

It is only a DQ if you sign for a score on a hole lower than what you made. Higher and the score stands. The player is responsible for checking that the score for each hole is correct. Not adding it. She signed for a wrong score because she didn't add the penalty for the drop. Sometimes the rule has a brutal application, but it has always been the rule and all the players know it. It is also a better rule because you have to get things right and not change them after the fact. IMO it is the only way it can work in practice. You can't go amending scores; it would be a mess.