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Why the Fediverse is not (yet) Billionaire-Proof, or: The 51% Attack for the Fediverse
(fungiverse.wordpress.com)
This is a most excellent place for technology news and articles.
I've seen some active instances die due to admin neglect (not paying the bills, for instance), and I've wondered how those communities have fared since, since they'd have to start over elsewhere, and without all the content and history from their origin server. Same goes with user accounts too.