No mention of shiny yellow metal.
I am about 12 pages in. The only mention Selco said he traded what little gold he had early during SHTF. He does repeatedly talks about trading ‘stuff’ for ‘stuff’ and I have always said that during true SHTF that’s how its going to be. If you are going to trade a bag of rice its going to be for something else that you can use! Not for a piece of shinny meter that might benifit you sometime in the future when things get back to normal.
Not in those exact words, but he does refer to "rifle ammo", which generally includes shiny yellow metal.