I think there's a fundamental misunderstanding still of how the Fediverse works.
Any instance, mastodon.world for instance, is NOT Mastodon itself. Mastodon is JUST the software that was chosen. Each instance is allowed their own rules. Each community is allowed their own rules within the instance. If you get banned, think of it more that someone has asked you to leave their home and doesn't want you there.
We have to get away from these ideas of that every instance of Mastodon or Lemmy or whatever completely reflects the entire Fediverse.
This comes with a big caveat. I think the world still sees us this way. And I think we HAVE to do a better job of, "This is a platform and if you're banned you're gone." Instead we should help folks understand, if you're kicked off an instance, there are a dozen others. There is a community for everyone. Hell, run your own or ask and folks can run one for you.
I will 100% disagree with a LOT of folks on a LOT of issues and I'd never want to host socials for the majority of folks. BUT I will absolutely defend your right to exist on the Fediverse and even help you, to a point, set up your own instance. But everyone needs to be mindful, that those places can and will still ban you. But you can at least get your message out to your community.
I don't know what was said as I don't speak German. I also don't know why he was banned. But that is .world's right to eject anyone from their community they don't want. If the person decides to leave and not come back at all, that really sucks. But they also have the right to start their own community and continue interacting.
I've banned someone from TubeFree.org. I've blocked folks. I've refused to allow someone to create an account on TubeFree.org. Am I censoring someone? Maybe, but I'm attempting to build a specific community.
I'd absolutely LOVE to see any of these big instances have communities start their own instance. We shouldn't have monoliths in the fediverse. The more diverse the network, the better. Honestly I'm trying to help communities run their own for their own community. I've even been talking with folks and attempting to work with folks on a spin up your own image to run from a business or home that is plug and play.
We NEED people to run their own, control their data, manage this themselves. We're not there yet, but I honestly think someday we will be and everyone will just have a presence on the Fediverse. A community blocks you? You won't even notice because YOU control YOUR digital identity.