I do like the idea Kaalus was trying to go for. But by now disabling the ability to craft certain items based on a particular experience level Kaalus kinda took away a lot of the incentive to gather experience. Even a skilled player can go through the game without having to harvest xp. If gathering xp orbs only boosts my physical stats (speed, health, sleep, resistance to hear and cold), then I think it's a pointless feature.
However, it could have some potential use later on...im not sure yet.