Heya Cole, yeah I think it was a pretty generic fishing attempt. But we just wanted to get the word out. Normally Lemmy users are quite tech savvy but you never know. Cheers!
You have an account on an instance with a very active admin team. We were even the first one to report this specific instance to the rest of the admins. We didn't do it in public to not give them any kind of exposure.
As others in this thread have suggested, you can disable NSFW communities completely by disabling the NSFW flag in your user settings.
With fediseer you can Endorse instances and then you can follow the blocks those instances do. So for example you endorse lemmy.world and literature.cafe and when either one of them adds an instance to their blocklist on fediseer they will also be blocked on your instance.
You can even follow those blocks just for certain tags. Let's say you don't want to follow for "inactive admins" but you do want to follow for "neo-nazis" and "CSAM".
It's pretty cool and the functionality keeps expanding. Before it was more like a ring of trust but the developers have really been listening to what the community wanted and there has been a ton of progress. It's created by @db0@lemmy.dbzer0.com and @rikudou@lemmings.world who added the gui and loads of extra features.
It's a disgusting, terrible instance. Back when I added them to our blocklist and fediseer they even had pedobear on display as if they were proud. They have a MAP community and Pedo memes.
I had to manually change a flag in the database to restore the community. There was no option from the UI to do a "restore" like you normally can. The user also deleted his account after maybe that is why.
Either way, what happened here can happen anywhere. And while there is always talks about "spreading the loading because it is good for the fediverse" it also shows what can happen if an instance's admin(s) becomes inactive for whatever reason. We have lemmy.one and feddit.uk now who's admins seem to have disappeared. Your community and accounts can be gone overnight.
They have been defederated on Lemmy World for months: https://lemmy.world/post/2498330
But you are on aussie.zone so they might still be federated and will explain why you see their posts and communities.