I always felt like the AI Dungeon response is absurdly stupid. Yeah, erotic text involving minors is not exactly something you want to be associated with, but I've heard that one of their approaches to avoiding it was to ban numbers below 18. That's... not worth it.
I feel like it would've been more than reasonable for them to have taken the position that the AI might output something distasteful, and implement a filter for people who were afraid of it.