I agree. People look at games like Dragon Age and Mass Effect and say that their story has all the background information within the actual narrative. But if you retrospectively look at the initial games in each series, Reapers and the Darkspawn are actually barely touched on in depth in conversations or cut scenes, outside of the typical "these are bad, make them dead". A lot of the information people now know is a result of their in game knowledge banks, which Destiny could greatly benefit from, and from the fact we've had 3 games, and several more years to digest the entirety of the lore. An in game codex, heck, make it fit nicely into the lore and travel to a warlock library and study all the cards in an organized fashion, would greatly help the honestly fantastic and rich backstory behind what we do in Destiny be recognized a little.