When I found out that we could now buy materials with marks I had a plan to use the Crucible marks I wasn't planning on spending soon. I am building Vanguard Reputation first since I am further along on that road than Faction Rep. So the plan was to buy all the materials I could with crucible marks then sell them all for vanguard marks. Once I bought all the materials I found out I could no longer sell those materials at all so now I am stuck with materials I don't need. My point is that I play crucible a bit and wanted to convert those marks into Vanguard Marks in this manner. Since it takes 25 crucible marks to buy the materials to sell for only 5 Vanguard marks I thought it would not be seen as milking the system. Guess someone thought otherwise which is why we can no longer sell materials.