[karaterobot]

You can't stop someone from misusing your technology by updating your terms of service, just like you can't stop a criminal by making their behavior against the law. But I don't hold Microsoft responsible for making the police behave a certain way, or for preventing violations of the rules from happening. As you say, it's just not possible. I'd be satisfied if Microsoft consistently shut down any attempts to use their technology in a systematic way, once they discovered a violation of their terms.