Bartle has quit TOR and gives a pretty solid explanation why.  His reasoning is the same as the majority of people, including myself.  The main difference is his method to reach that point.

Playing the game as a job certainly doesn’t sound fun but then again, he plays with a designer’s mentality.  He mentions the large disconnect between the 1-49 and level 50 game as the primary hurdle.  This is further expanded upon with the recent patch that further reduces the amount of content 1-49 and increases that at 50.

1.2 removed story and the rewards for completing high level content are not something people who care about story would want.

How do you spend months selling a game on story and unity, then put all your focus on the exact MMO tropes you’re trying to avoid?