It's indeed saddening to see so many animals sold and bought by unknowledgeable people, as if they were just used objects. It's also sad when someone feels the need to get rid of their pets like that, be it financial or circumstantial. I know sometimes the animals have to go, but a lot of the times, it's preventable.

Rehoming animals is difficult, stressful, and risky. Like you said you never know where they're going or coming from. I really hate seeing kittens and puppies on there. It's very saddening knowing that those cats will probably end up in the streets having more kittens, and the dogs might end up being fought or bred by BYBs/mills.

This is why I believe pets are a commitment, not a privilege/item. I watch craigslist and I see new ads weekly for baby and juvi ball pythons, no doubt bought from a pet store just a few months earlier and now unwanted and unhealthy. However, I also see the people who have had their snakes for years, and are reluctantly trying to find good homes for their beloved pets for whatever reason.