Can IPFS or torrent and large local databases decentralised by people be a solution to this? I personally have the resources to share and host TBs of data but didn't find a good use to it.
That's two big "ifs" for something I'm not aware of a standardized way of announcing. And the entire thing crumbles as soon as someone who wants every drop of data possible says "crawl their sites anyway to make sure they didn't forget to publish anything into the 2nd system."
This way crawlers might contribute back by providing extra storage and bandwidth.
Though something like ZeroNet seems a better approach to allow dynamic content.