John, please see my response to Charles in this thread. I think you've got a strong point & I personally agree with your reaction, but ...

1. Any letter you send needs to be translated to Mandarin (Well, not actually. They take order in English it seems.)
2. Good luck getting a reply or getting the practice cancelled. The horse has left the barn / the ship has sailed. Pick your expression.
3. Adding these "problematic" chips to the ChipGuide's "Fakes, Fantasies & Souvenirs" section on the relevant casino's page is important & useful, but it doesn't reach all the casual buyers on eBay or elsewhere.
4. I don't have an answer for how to address it further, though I'm interested to hear others' ideas.