I guess the question is: if you host a public forum, are you liable for things posted on it, or on separate but linked forums?
I was thinking the same thing, as a legal question.
In the Fediverse, who's the source/target for the law to look at, the originator, or all the cached copies on other servers?
Edit: Basically, what this comment describes...
Then, who do you sue? The person downloading the product? The person hosting the product? The person providing a link to the hosted data? The person providing a platform for people to link things? The person who allows their platform to federate with another platform that does?
If we’re talking about P2P sharing, then in a way no one is hosting the data.