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Threads' New Terms and Conditions Affects the Fediverse
(wedistribute.org)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
Probably none. For all he knows Meta already owns a couple small instances.
They admitted to federating for research back around bluesky's announcement.
If you don't want your data scraped you'll need to use e2ee.