I think a lot of people may have a unique insight or some idea that they feel could be a great solution for a particular problem, but for some reason never have a chance to try or never have the courage or maybe the self-doubt. Really, it's best just to remain naive and continue to work on things and see if people have the same problems.
When you limit the length of the video to something under two minutes, it gives everyday people an opportunity to make something entertaining. It's harder to tell a story or create an entertaining piece of content that is based around the time slot model, television shows being 22 minutes long.