Americans say sexually explicit content can negatively influence people, but don't worry so much about violent content.
Personally, I think both are partially right. We are what we eat. No human mind is inviolable, the information we consume effects who and what we are. Whether any particular influence is positive or negative is mostly a matter of subjective values.
(Though, the really weird thing is how there is porn about porn being harmful? bizarre.)
(That being said, I'm all for private platforms tending to ban it, at least provided that the reason they can do so isn't just due to monopoly stuff. So if twitter banned it, that would be good imo.)
Personally, I call that a good thing, even if yes, porn can be very unhealthy for both creators and consumers.
[0] https://slate.com/culture/2006/10/proof-that-internet-porn-p...
I'm not joking
Hah, this seems to be coming back in recent times, with states trying impose bans or paywalls on porn or Chicago making their officials look like clowns by linking GTAV to increased carjackings that happened long after the games release.