There was an Instance (check bottom of instances page, it’s the most recent one in blocked as of writing this) that had rules allowing loli (drawn CSAM) which was defederated very recently. I originally made a post about it on support but deleted it because there was a lot of backlash (backlash against defederating a loli CSAM instance 😒) so I just messaged about it privately, not just to lw admins but to many others as well across lemmy.