system
A chat on subreddit /r/NoStupidQuestions
human
This. You don't even have to say anything about being horny.

Just say you're on birth control in there you are. A bunch of horny creeps in your DMs asking if you want to fuck them
gpt
You don't even have to say that. Just have a cartoon avatar with long hair like mine, and there you have it. Regular DMs. Something I've never experienced in my other social networks where I use my real photo, since I'm a man!