The amount of time they would have to spend anytime someone would make a fake case and they would have to respond would have been insane. I think it is smarter to ignore most of them so that you would continue to do a better job in the end.
The team can easily identify which is genuine case and who is trying to put fake allegations against them without any proof and they are legit in the business so won't cheat you for hundred dollars as they are running successfully with millions of bets so they ignore such fake cases to avoid wasting time as well.