Item for removing soulbound
Anet could sell an unbind component feature from the gem store for 1000-2000 gems each. They would make some money without removing completely and freely the bind system, people would use this or to sell back a legendary when they change their build or to reequip on another toon. There would be no abuse on this as the unbind item would be expensive and only available on gem store. I believe a lot of people would love to see this implemented. You can also imagine different quality of “unbind stones” for each tiers of rarity and then different price ranges depending on said rarity related feature. So you would have “rare unbind quality stone” for rare items at 300 gems each / “exotic unbind quality stone” for exotic items at 600 gems each / “ascended unbind quality stone” at 1200 gems each for ascended items / and “legendary unbind quality stone” at 2400 gems each.
This is a good compromise between players, Anet and system balance avoiding abusive behaviours and not much affecting TP economy. Allowing also extra $ incomes for the game.