There would have been a simple solution to all this since it's pretty clear that Bioware are never going to bring back the dupe exploit as you can see from the latest patch they are targeting others exploits as well.
When I used to play MMO's my 1st character was the main character who did all the grinding for mats, gold and armor etc. so that when I then created my next characters I could send whatever gold etc from the main character to my alt characters therefore saving a lot of time and boredom having to do the same old stuff albeit apart from armor that was "bound" armor.
So this shiny new chest that was implemented into the latest patch it could have been account bound leaving the player the ability to leave items in the chest for his/her other characters to use as well.
I still haven't touched DA:I since the dupe patch and seems more and more unlikely I will never play it again which means no buying the story dlc and probably no more DA games but then what Bioware are doing doesn't surprise me as I'm pretty sure hell will freeze over before they would bring back the dupe or any exploit back into the game.