I am also unsure if that snake did have IBD, most of the snakes that were starving were doing weird movements. In the video on PETA there are two snakes that were spazzing because they had no food, which was the case for some of the snakes taken in to our sanctuary. But the whole point of our sanctuary is to take in surrendered reptiles or ones that have been left behind by people. That is why we took 500 of the exotics from Texas, we nurse sick animals back to health and once they are well again we put them up for adoption (certain ones of course, some of them would stay at the sanctuary if they are not a children's pet because normally it's children coming in to adopt a snake or reptile).
I'm not sure if you guys heard of this but a couple years ago there was an illegal shipment of alligators and once the people were caught the alligators came to our facility. 95%+ of the reptiles and exotics we have are surrenders.