FWIW, the FSF's stance has been that the (A?)GPL is not a contract. After all these years, I still don't know whether they knew the flaws in their legal reasoni

FWIW, the FSF's stance has been that the (A?)GPL is not a contract. After all these years, I still don't know whether they knew the flaws in their legal reasoning and just went along with it regardless, or whether they truly believed in their claims...