It's not merely imperative to create alternative Bluesky servers, it's imperative to make them populous enough that cutting them off from the first Bluesky server will inflict more pain on the company than it inflicts on those other users. That's not a guarantee that Bluesky's future, enshittification-bent management won't go ahead and do it anyway, but it does increase the chances that if they press on, their users will take the hit to defect to free/open servers.
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