> I don't think an AI freely writing lines within the game is a good idea if the developers want to be certain that it won't ever produce questionable text

On the other hand, there's a plethora of people who are fed up with corporate/legal drones sanitising entertainment media into complete boredom and want a breath of life or 'questionable text'

Also see: Disney tanking previously massively profitable franchises by sanitising and politically-correcting them to the complete disdain of the core fanbases.