Given OpenAI's well documented history of unethical behaviour it seems adorably naive to think they actually do that in general, or that they wouldn't pull this particular data separately to generate these proofs.
Unethical doesn't mean irrational. They'd be risking massive lawsuits and a total loss of trust if they got caught lying about this. Doesn't seem worth it.
Unethical doesn't mean irrational. They'd be risking massive lawsuits and a total loss of trust if they got caught lying about this. Doesn't seem worth it.