This is a step in the process that is making the rules. Once the rules are made then it is clear what is "right" and what is "wrong".
Only after we implement the Terms of Service can we tell what the problem will be in enforcement. Some people thing everyone else is a cheater, some people think very few will be. But we can only know once we put the rule in. Then we evaluate the impact.
I do agree that @sylar has been accommodating, as well have some other bot makers like NoKo from Legendary Tools. I imagine all the bot makers will adjust since they want their clients to follow the rules.
Remember this isn't about hurting bots or bot services. This is about making modes of competition that enable humans to compete against each other using their own minds. We had that a long time ago and it was fun and we grew. So this proposal is meant to create that competitive environment that will encourage people to want to sign up to play and thus grow our game for everyone.