Would a thread even do anything? If the animals are that bad off, I would think it's first time buyers. Anyone else would know not to buy from them.
I would talk to your friends that vend that show. Get them to stand together and talk to the person who runs the show.
The person selling sick animals is hurting every vendor there. The first time buyer that has a snake die on them might not remember that vendor, but they will remember that expo and never come back.
The vendors should stick together and get that guy out of there.
Good luck.
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