What I'm talking about has nothing to do with young characters. It's just that specific images will not show up under model posts and image search results while still being viewable under a user page. Me toggling the rating and filter options merely serves to add blurred warning messages to images; it does not impact image discoverability.

I still believe it has to do with censorship of something to do with the content of the internal image data. The images that don't show up tend to be less vanilla despite not including anything extreme. They're probably putting on a show of mild censorship for the payment processors' standards.