>>14439421Because fetishists always want art and are always willing to pay. There's a hell of a lot more money in catering to people and shitty fandoms that will guarantee you work than there is in trying to sell your own original work.
I used to do the whole art thing and trust me, whether the artist enjoys doing it or not it's much easier to maintain enough income to support yourself by whoring yourself out to bronies and sonicfaggots than it is to get people to buy original works.