Please

In it's current state player trading would likely cause a huge fallout. It's only okay in Borderlands because there is no such thing as PVP and many weapons can only be wielded after a certain level, not to mention the gigantic selection of weapons (thanks mostly to re-hash & stat changes). With no weapons and armor produced beyond level 20 we would have a saturation of Legendary and Exotic gear thus making it not special in any way. "When everyone is super...no one is." in other words. Further than that, a player driven economy has to have more elements than supplied at this time, one of the best examples can be found in EVE Online. The player economy works there because of the vast array of items for sale along with a very large player base. Destiny could get to that point, the basic elements are already there, but only after some sufficient growth.

My answer is no for a simple reason, this will definetely break the game, opening it to hacking, duplicating items, proxy exploits and RMT (real money trade). The idea of trading my items is exciting...but I've played too much RPGs/MMOs and got some experience about, it will definetely turn into dirty stuff (not the majority of players of course), I'm sorry :(

I hate trading people must earn what they want.

No. This will break the game.

If they open up trading, they open up an entire world of hacking, duplicating, and modding weapons and gear. They intentionally didn't put trading into the game for those reasons.