If you're a fediverse admin, you can give Alice the freedom to move permanently to your server, while still being able to talk to her friends on Meta's server. Including about making the jump themselves.
If you're blocking that server, then even if Alice sets up a non-Meta account, she still needs to keep logging into Meta's server. To have those conversations.
Shame on you if you help Meta keep people trapped on their server. Don't you know Meta is bad?
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