I didn’t say “defederate them”; I said that I didn’t know why other instances were defederated when that instance is worse. I intentionally didn’t say defederation is bad or good because that’s irrelevant.
Also, different people have different views on defederation and its relation to the Fediverse. In my experience, curating away from content harmful to your users is important to creating healthy communities.
This guy has been spamming garbage everywhere. sh.itjust.works is a terrible instance with no moderation and this quality of post is pretty normal from users there. I don’t know why they haven’t been defederated en masse when other less spammy/disruptive instances that actually contribute to discussions have been.
The article explicitly talks about that multiple times, though. Were you reading one of the articles that this one references? It mentions repeatedly how inaccessible and unaffordable healthcare is, using both of those points, and then moves on to discuss the issue as part of a broader societal trend.
You can use nginx or traefik as a reverse proxy locally without opening ports 80 and 443 to the world and host your own local DNS service that points to your server’s IP (and even use a self signed certificate to get HTTPS working).
Honestly, your instance has gotten worse over time in that regard too. Lemmy.ml used to be one of the better instances in that regard but the influx of Reddit users caused quality to crater and weird propaganda-ish pro-America/pro-capitalism stuff (and, not coincidentally, more racist/transphobic stuff) to start flowing from .ml. Probably not anything worthy of any block/defederation because ml still has decent content and a lot of good users but I sometimes am surprised by the stuff that comes out of there.