I previous reported that models marked minor characters were falsely reporting a 404 error. The site has finally added something here. Hopefully we can also get blank cards with "Model hidden due to mature content settings", like we do with things hidden for visible ratings being too low, so people will know they're missing stuff. It just destroys my engagement when people have no idea stuff is being hidden from them (the Ultra Lord ports I made as part of a joke beat most of my models that I had to mark that way).
(Also got to question the grammar though: Wouldn't it be when adult content filters are off?)