RE: Do you ask if an exotic pet reptile was captive bred or taken from the wild?
Well, I am not going to argue against adopting. We have three cats, and all are "pound kitties". But reptiles are a bit different. For a few reasons. One, health. Most reptiles given up for adoption haven't been cared for well unfortunately. They are usually n impulse buy that someone got bored with. And reptile heath problems are much different than mammalian problems, and it is harder for even experienced reptile vets to diagnose sometimes, and then treatment is worrisome to many. (Forcing meds down a snake or lizards throat seems much harder to some than hiding a pill in a hot dog, lol).
Two is behavior. This is the same as with many cats, dogs, etc, many adults are unsocialized. But socializing an unhappy iguana is no picnic.
If you have the time and resources, adopting would be a great thing to do. But, it definitely has the potential to be problematic.