Making this post as a place to dump various things I learn while researching Prospera. Feel free to discuss or dump other things that you find interesting.
Epistemic status: extremely low confidence. I'm mostly just taking info from Wikipedia, which might be a biased source.
It needs to be mentioned that Prospera is still operating despite this fact, arguing about 50 years guaranteed by the legal stability agreement. The zone was not shut down in practice, the conflict about repeal is legal in nature, perhaps it may result in more court cases.