This feels like an obvious bullshit cop-out reason to defederate against a specific community that they don't like for whatever silly reason they can't reveal to the public.
Never have I seen an actual link to content survive very long on lemmy.ml or dbzer0.com. Just like the good old /r/Piracy we discuss piracy, but we do not directly facilitate it.
Someone please slap the back of their heads repeatedly and aggressively with these facts. This excuse is disingenuous as hell.
If you are a user of lemmy.world; RUN. NOW! Find a new instance. Switch away from them before they reach terminal enshitification velocity.
I guess, someone with a copyright background came knocking at their door. It's one thing to defend against a lawsuit if you are a big for-profit company with a well-funded law department and a nice financial buffer. But it's an entirely different thing if you are hosting a non-profit platform with your own money because you are a nice guy.
Tbh, I am negatively surprised how many people don't understand that the person hosting a lemmy instance is someone who does it as a hobby and not a big corporation.
The good thing about Lemmy: if you don't like an instance or it's admin, you can just host one yourself. You just need a Pi or an old laptop and a few hours of time. Did you try that?