He shows that the crafting tree is absolutely fucked by getting a perk that cuts the cost of using and gaining crafting components. The retard devs failed to close a crafting loop, so dismantling health kits you made leads to a net gain. The other notable exploit is a painting you get from a side quest (near end of vid) that sells for a shit ton **and** you can buy it back for $5. This apparently works for any similar quest item.