I mostly like the RP element in all games and the best RP is made by the players themself. I think it won't get any effect in game or making advantage/disadvantage to the player. Allowing players to make his own biography on his character(if you don't want to you are free to skip it), when armorsmith or weaponsmith making his "legendary" items he could add discription on the item. Some eg. I made iron sword, made it sharper, add some colours or elements(only ?outfit? of the sword?) and added discription "D. Masterpiece" or create all history of the weapon all depends what player want to do. Yes, yes i saw it in BG games, but BG and IWD are mostly all what RP games should have:)
What do you think guys?