Never heard of him or his viral videos?
Oh, but I'm a working adult and not at early teen with too much time on my hands. Way over blown as an effective marketing tool beyond the youth markets. Converting viral videos in actual cash income is an entirely different problem from the creative enterprise used to make them and get them viral. Once they're viral you only have exposure, which doesn't necessarily mean you get sales. It's no accident that major advertisers have backed away from social media as an effective marketing tool - unless you're a soft drink or sneaker manufacturer.