Well im for geting experience from all the sources (quest/mobs etc.) because its always been like that, yeah sure there were some games that gived you xp for doing quest things only but to be frank they were more of a segment game (pass segment X you get an overall exp pool, like ME2), here? im all in for geting exp for mob kills quest hell even for lock pincking if its possible, but yeah i would not mind if you would get less and less exp from killing monster (when your character is geting stronger) to the point when you would not get anything or only 1 xp.