Possibly a Cabbage Posted:

If we want to make certain things require a month of grinding to get (like pink floyd) would it really be a problem to mark pieces of certain .moar files untradeable, and let people trade pieces of other files?

The problem is that pieces don’t have rarity, files do. So marking just a few pieces untradeable doesn’t hurt anybody.

And I think that’s where the .moar files concept was blown. Files shouldn’t be rare, specific pieces should be. Then it’d be like CCGs and other collectible cards.