He clearly does not want to be an artist, but he likes the idea of 'being an artist' such as getting all of the fame (while being on his comfort zone).
Basically, Dobson just want the (positive) attention, without giving himself any trouble. Hence why he considers his animation degree as 'useless' now, since it didn't give him a free pass to work at Disney (or any job in an animation studio)
Edited:
This is also the reason why he says how "2D animation in America is dead", which is complete bullshit
Preston just wants to be popular and internet famous. You can pretty much tell by how many pictures he did about the Fresh Epics people that he just wants them to pay attention to him.