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This still baffles me, but I guess it's good for federation?
(i.imgflip.com)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
If you're on that instance they make pinned posts pretty frequently where they explain all that...
Do you want them to call everyone individually and let them know?