Well, you are though. You said that his work has no market outside of art fairs, and that is patently untrue as he is selling them for a lot of money and not through art fairs.
You also claimed that it is easy to tell a painting's quality from low resolution photographs and that these paintings are "typical Bob Ross stuff" when they are in a very different style from Bob Ross.
Basically, as far as I can tell, you either want an argument out of this, or are merely pissed off that some kid has got rich from paintings you don't personally appreciate after only seeing photos of them on the net.