okay so i didn't come back to it till now but it seems like there's a fine line for mature content on artfol because of the whole app thing but based on the TOS it seems that it's not wholly banned just limits to what is or isn't okay which seems fair imo (but of course everyone has their own opinions)
as for inkblot it seems to have more leeway (just no illegal stuff) and a strict rule for tagging works on the site. sidetracking for a sec, it's performance has improved a lot as opposed to earlier years due to the coding team working overtime so any concerns about loading issues or whatever are mostly a thing of the past (plus the discord community is active in staying on top of bugs or other issues so long as people flag them to say whats up)
but back to mature content policy everything for artfol seems to be here
and inkblot covers it pretty well in this thread here and the corresponding tos pages/sections linked in the thread
https://twitter.com/inkblot_art/status/1646315008723398657
also for the record i don't want to and will not engage in back and forth about site policies on mature content coz i feel like it's not my place to speak too much since i don't make it but i also think sites are allowed to do what they feel will keep them and their platform or it's users safe or just out of the reach of apple's mess