But the marks cap would HAVE to be part of the equation. If you get to the weekly limit and trade more mats, the game won't give you marks. It has nothing to do with the max holding cap of 200 but the max earning cap of 100. Point is, between that cap stopping you from continuing to earn any marks past 100 and the exchange rate continually yielding less materials through each cycle of exchange, the amount of "free" crucible rep obtainable in a week is too low to even consider it a viable strategy or exploit. Therefore, all that is really accomplished by not allowing exchange both way is to cater to one group who enjoy playing to get marks and don't want to farm mats, while simultaneously alienating and punishing another group who enjoy farming mats and don't want to play certain things to get marks. Neither group is in the wrong for playing their way and both should be given equal opportunity to exchange what they have for what they want.