well... that's because - as i already said - lore is basically useless unless you are some kind of historian, that gets a kick out of dead civilizations. but those old days formed our culture and thus much of our world. it's not impossible to build a whole world without lore, it's just not feasible. so what most people mistake as a very important part of a game, is really nothing less of just the foundation on which a believable (and thus immersible) world is built on. you don't need it spoon fed though and that's the problem and also why most quest (text) are utterly boring and useless.