Musk has repeatedly accused people who post the names of his DOGE associates on X of breaking the law (to be clear: doing so absolutely is not a crime). He made a similar claim in response to the screenshots from r/WhitePeopleTwitter posted by Reddit Lies, saying “they have broken the law.” Engadget was unable to verify the Reddit comments posted by the account, but it included statements like “time to hunt” and “this nazi stooge needs to be shot.”
It depends on the local laws where the instance is hosted. If you would be committing a crime according to their local laws, instance owners would either have to remove your content or risk getting it forcefully removed by the “feds”, or whatever that country’s equivalent is.
Edit to add:
Of course, removing content is preferred, but if it becomes uncontrollable it might just be nuked
Second edit:
I read a bit too fast, I apologize. My comment is about users, not instance owners/admins. I refer to the reply you got from Admiral Patrick to fit your comment better.