I think what he means is that once you purchase the contract, the gain or loss you experience will solely be from market fluctuations, which makes sense.
I think what is happening is that USO is selling the old contract, which then just remains in cash. They can then purchase a new contract in the front month. I don't believe it loses money in this scenario, but admittedly, I may be wrong.
Pekelo, another chance for you to have egg all over your face, I see. It would only be the 1,342,353 time, with regards to BTC.
BCH is a scam perpetrated by big players, Ver, Coinbase and now CNBC. Don't fall for it. Keep accumulating BTC.