Because it starts becoming a sub economy that has sellers spam players..... Ever play diablo 3?

best way to get rid of seller spam ignore them

Either way bungie doesn't want to commit resources to maintaining a marketplace. They aren't going to add trading.

meaning they don't want their game to last long and if they don't add trading some features i bet within a year or 2 all of the mmorpg players won't be playing destiny much sense, whatever game they be waiting for be released or there mmorpg, game new expansion be released so trading and some other features are crucial part, of any game what has mmo style even if its not in mmo category. its still basically a mmo sense they have gameplay like a mmorpg and a party system like one and dungeon aka devil lairs and a pvp system like one. So like i said its is basically a mmo even without being in mmo category!

Bungie has said that destiny is a shooter first before anything. And I don't mind that the mmo crowd won't be interested as much as shooter fans. I don't like mmos for the amount of grind there is in them. Now I know destiny has many of the same elements but somehow I don't mind them as much probably because the maps aren't as huge and the areas limited as much by level. I do think destiny will last because bungie has put so much effort into the community. Trading doesn't need to be central