Yea there is rule for shota, loli's etc has been around for like 3-4 years now, that is why alot of people have gone to subscribestar cause they allow it, its a shame what happen, hope you can get right back up fast.
I know some devs and artists that had to pull their games out of patreon cause of that or other issues, patreon became a bit harsh to work with, that is why some devs i know went over to Subscribestar but idk how it works still trying to get an answer from them its been 2 weeks.