Permanence Objective - Not explained

The central idea of giving content "permanence", is mentioned, but then very weakly "explained away" with "pinning".
The pinning concept though, has not a line about how to preserve content without paying for resources.

It seems to be a fundamental flaw in the fight against censorship and loss of "heritage" that "pinning" does not technically include anonymous pinning, in form of "co-pinning" for example.

cs.ipfs.tech/concepts/persistence/#persistence-versus-permanence