I wouldn't mind some sort of trading system. But... exotics and ritual weapons should be excluded. Except Hawkmoon maybe, as it has farmable rolls. High end weapons and armour such as raid exclusives could be allowed, because every gear traded in this way would NOT be added to collections. You want it in your collections, you need to earn it. Raid, dungeon and trial exclusive armour and weapons should only be allowed to be traded once. All other gear can be traded more than once. And why stop at gear? How about trading masterwork mats and planetary mats? That'd be cool, too. But probably limit the amount of Ascendant shards you can trade in a day though.