Okay, so they didn't want a trade system because people had go own their own gear, they had to work for it, yada yada yada. But implement a trading system where you can only trade blue or lower rarity weapons and armor. Make purple ships, engrams, and shaders acceptable. Also, make all materials and consumables save for the ones that count tradable. So treasure keys (let's be honest here, people need this), helium, spin metal are all tradeable. Things like Cruxes of Crota, tokens for Variks, and weapon cores/embalming orbs aren't tradeable. With this system, players still need to work for the good loot, but if you are just short of the relic iron you need for an upgrade, and your friend needs another heavy synth, you can still make that trade.