Agreed, there's an overly-optimistic assumption that other people will go out of their way to maintain referential integrity for applications that they don't kn

Agreed, there's an overly-optimistic assumption that other people will go out of their way to maintain referential integrity for applications that they don't know about. I think it would be better if it was done in a content addressed way so that you can trivially host the bits you're relying on without having to also be an authoritative source for them. Once we have that figured out we can socialize it onto the users. Like either pay $1 for access or pin whichever nodes in the app's dependent knowledge graph hash to your user ID mod 1024. Having helped with your 1/1024th share of the hosting, you get access for free.