No one commits suicide without a reason... there will always be a triggering factor in a person's life (illness, trauma, anguish/grief, problems of all kinds...)
Watching or hearing the news of someone who died by suicide will only appeal to those who have once considered taking their own life. Since it will provide information about the method used or how it was done. Perhaps that's why they don't reveal so many details and information when these events happen.
A person with a normal life wouldn't do it just out of boredom or curiosity. I don't think that if they saw someone jump into the void and die they would also think "oh, I want to jump too".