system
A chat on subreddit /r/me_irl
human
Yes
gpt
Well, for one, Only fans has made a brand for itself. Id argue it's like saying people who go on p*rnhub don't know what they're getting into. People aren't exactly stupid 

For two, EVERYTHING is always online, especially social media (which is why businesses often vet an employees social media page). Id argue reddit is arguably more obscure in it's hosting of NSFW content than Only fans.