So this post from lemmynsfw.com just popped up in my feed. It is not tagged as nsfw although it obviously is. I have tried attaching a screenshot but Jerboa throws an error. I have nsfw material turned off in my account settings, so this wouldn’t happen if the post would be tagged properly. I’m using Jerboa. I could just ban the whole community but it is not the solution in looking for, because the ban works on app level and I have separate accounts for separate needs. Also banning the community is a reactory move and I would need to repeat that for every offending community in the future. That means that my feed would still be getting occasional nsfw material. Please advise.
There was a post recently about NSFW tags possibly not federating properly, and I wonder if that might be what you’re running into.
In terms of a real, solid solution, I don’t know what the best course of action is. But as a band-aid solution, you could try an app that allows for in-app server blocking. Lemmy itself doesn’t allow users to block an entire server, but Connect at least (and probably others) allow it on the app side. But it wouldn’t help on anything other than the app, so it’s definitely not the ideal solution.