Tis not an exploit if bungie made everything able to be put in the vault and shared between characters. Game would be even more boring if u couldn't do the weekly more than once. Strange coins should be bound to character they come in abundance anyway there not rare at all. But not being able to switch around gear would be moronic. If I don't like the way my warlock looks then I'll make another and switch the gear to him so that I'm happy with my choice that i cant change by some in game customizer that every other mmo has.