I guess most noteworthy models on PAI are indeed locked behind something. I unflagged 'sensitive' stuff in the settings, but even with that checkbox unmarked the list of available ryona- and snuff-related models only slightly differs from the 'semi-SFW' that is Civitai.red.
Unfortunate. And they also count failed downloads as complete ones. I got locked out after 1 complete and 2 failed ones, which is outright depressing.