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Lemmy.world Should Defederate with Threads
(lemmy.world)
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration), Search Lemmy
So my understanding is that the way Federation works in the activity pub standard is that information is not cached on a server unless it interacts with another piece of content. It's basically a web of users, and one user cannot reach far on that web. That would mean the easiest way to collect mass amounts of data is to sicc their users over here by the millions.
Although if my understanding is incorrect, I would be happy for someone to educate me.
No, they don't even need an instance, all of the data is public and freely accessible.