Like everything, it starts with an organic foundation then slowly gets absorbed by capitalism. They're now brand reps more than anything. Subscribe to curiositystream, BlueApron, and watch your favorite streamer take an extended, nonchalant sip from their favorite [brand] soda, replete with logo mugging the camera lens.
I like his videos but he is not a healthy looking dude, lets be honest
it's the insanely high testosterone