Remove the buy/sell order average that limits what you can list. This made flipping a lot more difficult last season. Typically I'd argue DD is not a cash grab, you don't need to buy stubs, you can just flip/invest, ect... The addition of this ceiling and removing the ability to exchange or quick sell locked cards, I am starting to change my tune.
Watch as in The Show 21 "tax" is increased to 15% killing flipping all together.