Wow I didn't know the law even talks about Do-Not-Track. It's a distraction posing as a solution. The time spent talking about Do-Not-Track could be spent on useful things such as contributing to torbrowser.
In the meantime it's important to comply with it with the simplest means possible imo. That's what we're trying to help with.
If you can be tracked you will be tracked, eventually but almost inevitably. The law could be used to provide some remedy for damages caused by tracking, but it should be introduced only after core problem with tracking (browsers willingly tag users for indefinite time with invisible tokens, in an quite stealthy manner) is solved.