Check the modlog for proof, a discussion post about moving this instance to an instance that shan't be named now got removed for "linking to instance featuring pedo content".
Ironically that exact possibility was reason for the discussion in the first place so seeing it happen this quickly is a bit funny.
Not sure how best to go about linking to said instance since it seems to get your content removed. DM's would be the only solution I guess but not sure if those are checked as well.
To add a bit more opinion: If you have an account on lemmy.ml itself and read/comment in either the Anime or Manga community I urgently recommend you migrate to a different instance. As far as I can tell the instance we shan't name here anymore for fear of admin abuse is still visible on join-lemmy.org after widespread complaints that removing an instance from there based on admin opinion alone is not exactly nice.
Best way to tell you how to find it is go to join-lemmy.org and look for an obviously anime themed instance in the "Art" category. Not sure if just saying that is grounds for removal though, depends on how trigger happy the admins here are.