Really depends on the porn. I feel like a lot of porn (if it has any logic or plot to speak of) is simply about sex occurring quickly in situations that it doesn't usually. That can be beause it breaks a taboo (step-incest porn) or just an ordinary non sexual interaction getting horny (workplace, public, dinner, pizza delivery, etc.)
It isn't generally "two people meet on a date and end up going back home and hooking up" because it's just not the novel. I imagine there's some of real life equivalents of both categories, but they're almost be definition exceptional.
Closest I can think of from my own life, is drunkly having sex in a deserted area, not thinking about security cameras. But if it'd been real "porn logic" I would have had sex with the police officers who later took me in for questioning. But no.
I don't think I'd feel like I lost a part of me if I my account got banned. But I could imagine feeling pretty angry if it was unfair, and frustration at losing access to save post or conversations with that I still reference.
But I do think an account is a 'face', just like in real life. I talk differently at work than with my friend, I speak differently to my boss and my students, and even different friend groups have different ways of talking or humour they enjoy. In that sense my lemmy account talks about some stuff I wouldn't bring up with certain people, and there's some stuff I wouldnt post on here.