content: Hanging is a VERY visual way of suicide- but it's usually targeted at very specific people who are close to the suicidal person. It's a way to show someone "Look at what you've made me do!", a final "fuck you, LOOK AT ME!" to a person the deceased believes wronged him somehow.  I suspect more people don't hang themselves in public because it's difficult to set up what they'd need in a place that is visible without drawing suspicion. So they do it in their living room, where their girlfriend will be the one to find them.