I don't really use any of the bots or helpers so I wouldn't mind them updating the TOS. It's hard to really say but I think there will always be people who want to cheat the system for an advantage. It will take time but if you crack down, eventually those people will stop.
There will always be cheats and this is a good thing. It helps build a more robust system. For instance, Bitcoin is probably the most attacked protocol out there and as a result, it has to be strong.