It would have been awesome if Copilot had been written so that you tell it what your license is and it emits code trained only on code with compatible licenses.

It would have been awesome if Copilot had been written so that you tell it what your license is and it emits code trained only on code with compatible licenses. That would have created an incentive for people to publish their own code under more open licenses, instead of facilitating IP theft and thus creating a disincentive. That GH didn't choose this option is rather telling IMO.