AT TWP greebo kids arent being exploited, they have several offers for volunteers per week and I am currently the only volunteer. There are 3 employee's at reptiles working on a rotating basis, between reptiles and noc house. One person is enough to maintain all the reptiles, yet they still have 3 employee's. Until you get any experience you dont do anything really except stand back and watch (you may feed the occasional animal), this is all I did for 3months, so I cant see how it is exploitation. However I think it might be a different story at larger institutions, where they need more keepers.
Tommo: They are a very slender snake so look no where near as long as they actually are.
There are currently 3 Oenpellis at TWP and they are all females, a permit for a male is currently being organised I believe. They will never be available to private keepers from TWP, some lucky bugger might eventually get a permit for them though, but that is only half the battle, would take about a month to find a pair. Just because they are on aboriginal land doesnt mean they are un-collectable, just give them enough money and you can do anything you want. I dont think this is what happened when the park organised a collection permit for the male though.
The current 3 were being held illegally by a private keeper, and were siezed during a raid.
Sorry for the late reply
Cheers