YouTube is ripe for that kind of abuse, due to the monetization policies. The more clicks you get, the more money you can earn. The less effort you put in, the more money you are making per hour. Or the more money you make for the energy invested.
Evans actually had a pretty good setup going. Easy money. And -from the standpoint of that video- it was legit. The idea of branching out made sense- how long could you focus on just the WTS before the channel became stagnant? He was growing his business and meeting people and no one cared about the bridges he was burning along the way.
And the he blew it up. Have we mentioned how catastrophic that confession livestream was?