Societies love theatres. Model guardrails are for chats what TSA is for air travel.
My personal belief is that at some point in the future you might get a good estimate of likelihood that a person commits suicide with blood test or a brain scan.
Do you believe a book should be suppressed and the author made liable, if a few of its readers commit suicide because of what they've read? (And, before you ask, that's not a theoretical question. Books are well known to cause suicides, the first documented case being a 1774 novel by Goethe.)
Suicides spike around Christmas, that's well known, does Christmas cause suicides? I think you see where I'm going with this.
You're replying to a teetotaler who had an alcoholic parent growing up, so I'm sure you can see where I'm going to go with that ;)