You'd trust the publisher, so you'd say "I want to help the Internet Archive with its archiving" and they'd be responsible for what files they pushed to your storage.

This is basically an opportunistic, distributed filesystem that's designed to work with high latency links. Only the tracker can write to its nodes, but anyone can read.

This, and easy-to-configure bandwidth throttling was sorely missing from IPFS last time I tried it.

Being able to specify "use 50% of storage to cache low-traffic things, and the other 50% for high-traffic things" would be amazing.

Not part of the question or problem statement as I see it.