I personally don’t understand why grading companies void / deactivate cert numbers when clear and obvious fakes appear on the market. I understand it signals that there is a problem with the cert, but another cert, especially something like an illustrator, is just waiting to be used so what’s the point?
I imagine they have a process for the actual owner to get a new cert, or reactivate theirs. Still as someone who loves risk-management design, I don’t see how this is a solution.
Maybe I don’t understand your question clearly, but I always thought that deactivation of a cert means that the company is saying this is not a legit cert anymore. I assume that this is what when you send back your cracked labels, but also when any evidence of tamper is found compared to the card which was graded by the company (alteration etc). For me any deactivated cert would serve as a warning to stay away from any card having the same cert.