This is also why I say people who want the Fediverse to be fully unmoderated should basically only live on single user servers. When your server federates with another and caches what's on that server, you begin to bear some onus for the stuff that's on that server, including if that other server is acting in a WILDLY illegal and unethical way. If you want to moderate out child porn yourself, be my guest, but also realize that not everyone took up the mantel of being a moderator on any of our older forums for a reason. It's exhausting. It takes a mental toll on you that makes it hard for you to enjoy the community that you're curating (most likely out of love).