When I was leveling my 2nd character to level 40 yesterday, as soon as I hit 40 I put on all my good stuff from another character, minus an artifact because I have 2 hunters and 1 titan, I leveled my titan first. I then handed in all my quests, was given a level 200 artifact, I noticed right away that my light level drastically went down. Today I decided to test out my theory and it was correct. I have my 2nd hunter at 302 light right now and the artifact slot is still locked. Not only do I not have to worry about getting the 310 artifact all my averages are also divided by 7 rather then 8, so light it much easier to gain or lose. I am still able to completely play the game, how I want to, I do all the questing on my titan, my hunters I pretty much just do nightfalls and raids on. How to do it, quite simple. Just go through with a character under 40, hit 40 and never talk to cayde or whom ever gave you the quest to hit level 40 again. Basically, it just stays locked and isn't calculated into the averages, so if you still have characters you have touched, this could be a good thing for you. This might be borderline, not a glitch, more of a trick, but I feel like if I posted it anywhere else it would get likely moved here anyways. Good luck guardians!