Lemmy

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Banned users on my instance (lemmy.1204.org)

submitted 1 year ago by italiota@lemmy.1204.org to c/lemmy@lemmy.ml

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I have just logged in on my own Lemmy instance, and I see a list of banned users in the administrative area, from other instances. I have not banned anyone myself.

How does it work? If you’re banned from an instance, you’re banned from the whole federation?

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[–] italiota@lemmy.1204.org 0 points 1 year ago* (last edited 1 year ago) (1 children)

Everything is running fine. It is as @jon@jon@lemmy.tf and @neoney@lemmy.neoney.dev write.

If I am server A, and I federate with B. If user@B is banned by B, this is propagated to me, so that A does not see content from B that comes from user@B. It makes sense.

[–] madmaurice@discuss.tchncs.de 0 points 1 year ago (1 children)

What I don't understand is why does server B have to tell server A that user@B is banned on B, instead of just not letting user@B login anymore and thus disallowing the creation of further content by user@B?

And maybe A wants the content by user@B, so why can server B dictate bans that server A has to enforce?

What happens if server A ignores them?

As an instance would I be able to flood another instance's ban list by just pretending to have trillions of users that are all banned?

[–] italiota@lemmy.1204.org 1 points 1 year ago

Given that I asked the question in the first place, here is how I make sense of it after some answers and looking at the modlog.

What I don’t understand is why does server B have to tell server A that user@B is banned on B, instead of just not letting user@B login anymore and thus disallowing the creation of further content by user@B?

Because A sees B's content, but on A server. user@B is banned on B, hence, A keeps seeing B content, but not user@B content on B. user@B can still register on A and post there.

And maybe A wants the content by user@B, so why can server B dictate bans that server A has to enforce?

Because user@B's content, while copied and displayed on A, is still B's content. B bans the user and their content everywhere. Again, user@B can register elsewhere and start posting.

What happens if server A ignores them?

From what I can see, if I am A, I cannot unban user@B in any way. user@B can register in my instance, though. I can ban user@A afterwards (or not).

As an instance would I be able to flood another instance’s ban list by just pretending to have trillions of users that are all banned?

I think so. I federate with Beehaw. If Beehaw bans everyone, my banned user list will get quite long.