This. 100 times this. You're not getting 10+ million YouTube subscribers in 12 months unless you are doing something that someone wants to watch, and doing it well. Most of us are probably of a different generation than these guys and their viewers and we are slow to see how entertainment has changed. Logan Paul (the guy in the original video) earns $7 million/year from his videos, and more from merchandise and acting gigs. It may look like a couple of kids doing pranks, but this is a real entertainment company.
No argument he has a fan base. They like rude and obnoxious jerks. 7 billion people in the world I guess you're bound to get someone to watch you with the world wide web. Heck, even ISIS has no problems recruiting thanks to the internet. I guess you can say they have a big fan base and lots of money also. Both of them suck in my book.