I can see the point of this, it is meant to balance lower level chests so you cant get a ton of items since other players aren't opening them. (ex/ old chests if you went to lets say the desert, if someone already looted the chest recently, it would have nothing in it.) But if you opened a chest now if nobody ever looted it and you waited the 3d limit it would be FILLED with loot.
BUT the issue is,
Like with level scaling in raids (which is a broken mechanic and needs to be fixed) you can level up a class to certain levels to maximize your mythic count, like for example, to get the highest level Mythics you would level a class to level 101 to access the Silent Expanse since all Flying Chests and most chests in SE are level 100, so getting a class to 100 will get you MORE loot than the average player at level 105/106. This isn't that much of a difference but still feels unfair and stupid.
In addition, if you try to loot lower level areas, even outside of a new lootrun, lets say like Molten Heights or the Dernel Jungle the chests are practically EMPTY if you are over level 100. This makes it almost REQUIRED to have a Loot Chest Bomb active to get any meaningful loot which really sucks. And again, I can see the reason they made it have less loot so you couldn't open chests at lower levels you don't usually open and find it FILLED with items, but most meta items anyways are in the ENDGAME where the chests are more FULL. It just makes it tougher and more annoying to get loot for any other levels.
Like for example, I have been wanting to find a boxed Pure or Az or Aangel for a while now (don't judge me) and the fullest chest I have had in the Jungle WITH 400%+ Loot Bonus and OVER 100% Loot Quality was maybe only 60-70% full. Almost every T1 or T2 chest doesnt even have a BOX in them.
BTW FOR EVIDENCE ON WHAT I MEAN: #1416708336673357935 message
and purely be based on the area level