Not very specific, the most "specific" thing on the message was:
"Under Patreon’s Glorification of Sexual Violence policy, Patreon has zero tolerance when it comes to works, real or animated, that glorify non-consensual sexual acts such as rape, sexual assault, or coerced consent."
Which is funny, since there's an unskippable disclaimer when you start a new game that clarifies that none of the content is non-consensual.