This really pisses me off. It's never a case of "Oh. I don't know what to do today. Guess I'll kill myself."
There are signs. There are always signs. "They're hard to see." people say. "How was I supposed to know?"
These researchers should worry more about identifying the causes and helping people with suicidal tendencies instead of trying to baby proof the world. Of course someone might feel regret mid-jump. You're not supposed to want to kill yourself. It isn't a natural state. A better public understanding of mental health would do worlds more than putting up a couple fences.