Let those abusers come, people using bots or serveral accounts mess up at some point and lose it all when they get caught. After that you can see how badly it affects them as they lash out in here calling every exchange who kicked them out scammers. So we already know that it's probably not worth their time as when they get caught they are raged.
It's easy to auto-flag users that use faucets exactly every hour without sleeping. And if they want to sherlock those accounts more, they can just follow the withdrawn money and at some point money is being going to same wallet.
I wouldn't call it so easy to detect bots on faucets as people will always try to fin a way around it. Everytime there is some free money involved, you will have a lot of abusers and this was one of the reasons why they dropped the rewards some time ago. Interesting to see that it is now up again so maybe they have new measures put in place.