Edit:

I reached out to Lemmy World admins (!lwadmin) and they said:

If a user is banned on their home instance then it federates to others, if banned on instances other than their home, it doesn’t

  • FooBarrington@lemmy.world
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    1 year ago

    It’s not useless, it’s so that the ban can be displayed on other instances. If it weren’t propagated, you couldn’t know if someone was banned without explicitly looking up their profile on their home instance.