This is not .mil specific: I've been told of a case where an airline first legally attacked a flight search engine (Skyscanner) for scraping, and then told them to continue when they realized that their own search engine couldn't handle all the traffic, and even if it could, it was more expensive per query than routing via Skyscanner.

Michael Lewis' podcast had an episode recently where the Athena Health people related a (self-promotional) anecdote that, after they had essentially reverse-engineered the insurers' medical billing systems and were marketing it as software to providers, a major insurance company called them up and asked to license information about their own billing system because their internal systems were too complicated to understand.

Yep. Have seen similar things.

Me too but for a private company

In reality it was probably more like org sub group A wanted to leverage org sub group B’s data but they didn’t cooperate