[abcampbell]

am saying it's an open question now.

so people can, and will, and should, ask

this also calls into question the general practice of "forfeit right X to get benefit Y" that appears common

In cases where "benefit Y" is actually "right Y", then it raises the question of whether these agreements are valid.

I don't know if that's actually happening, but probabilistically would not be surprised if it were - just given the legal complexity involved in these documents.