No. That's not right. At all. If you use a GPL ladder to get up and then climb even higher then you are mandated to not just leave the ladder but to extend as

No. That's not right. At all. If you use a GPL ladder to get up and then climb even higher then you are mandated to not just leave the ladder but to extend as you continue to climb. If you use an MIT ladder to get up then climb even higher then you have the choice to extend the ladder as you go or not. Or partially extend it in some places but not all. But there is literally nothing you can do to the original ladder. It's there for anyone else to use exactly as you used it and there's nothing you can do to stop them.