They implemented anti-piracy measures multiple times during the game's development and reacted negatively when paywalled content got leaked. And I don't care why they left, nor did I even mention it.The author doesn't fight piracy, as everyone can read from the Discord server. They left because of the toxic people on here and because of a disagreement with the mods.
Also, that copyright exception explicitly doesn't apply to works like this, it's not a parody, pastiche, or caricature in any context, nor does it fall under 'fair dealing'. It's full on an exact example of stolen assets being monetized without consent. Nothing's going to come of it until Patreon follows through on their claim to crack down on real porn assets on their platform, but it's just silly to pretend things like this in any way comply with fair use.