What's something about the fediverse you know but most people seem not to?
I only just learned today that, when someone from one instance gets banned from another instance, that person not only is no longer able to interact with the second instance, but people from the second instance actually can't see anything the person said from the moment they got banned even though they're still there. I'm disappointed to learn all my friends who got banned from my instance are still saying stuff and nobody told me, making it more akin to an instance forcing everyone to block them (because individuals blocking each other the same way work like this). And this is coming from the person who has fantasized about universalization of federation.
What's something about the fediverse that was most recently unobscured but that you know now?
Upvotes and downvotes are not private. You may have to jump through a few hoops to see the information, but user IDs are attached to every upvote and downvote sent across the platform.
I think i heard somewhere that a request to delete content of yours is passed from instance to instance. It can be ignored too by specific instances I believe.
While such requests could be intentionally ignored, I’m not of aware of a case where any actually have been. I can’t see why anyone would, and going rogue like that is liable to get your instance defederated.
In most lemmy instances, the default feed is a mix of that instance's and popular threads from other instances. Participating in such a thread that you find spontaneously is therefore not anything resembling "brigading," even if other people on your instance also see it spontaneously and participate.
I don't have anything especially helpful to share, but maybe it's not so widely known that anyone can run their own ActivityPub instance and avoid some of the collateral damage caused by other admins.
It isn't inherently or necessarily private, moderation and/or censorship policies are up to individual instance owners so it isn't inherently or necessarily unlikely to remove content or moderate in a way you don't like, it also isn't inherently entirely immune to corporate interests though arguably it is theoretically much more resistant to them. In terms of Lemmy specifically, it differs from traditional approaches to web forums in the sense that its content is distributed across many instances making it resilient against being taken down or forced to modify/remove material because it's harder to do that across multiple instances than just one entity.