Fully agree with everything you said except I never claimed or postulated front contract trading. A claim has been made that there is predictive value in the shape of the curve and hence points on the curve and that is simply not true. Anyone with better than market models and superior knowledge of the inputs will hence trade against the market agreed points. That was not contentious. What was disagreeable here was the claim that the curve itself provides predictive value. And I simply disagreed and laid out my rational. Also the role of the large commodity trading houses was also never debated nor disagreed on.
I respectfully disagree with the greatest enthusiasm on your points about the forward curves in the commodities. All commodities. I've made a living for many years trading the forward curves in commodities - exchange futures, OTC Bilateral Physical, OTC Financial Swaps. The forward curve is all about SUPPLY and NOT particularly basis components as you imply, and that is exactly why the forward curve is dominated by institutional order flows >>>>> and its THOSE guys you want to be trading with, and NOT the spec traders in the prompt months. You'll live longer and make more $$$$.
I've been doing this since the 1990's, and I can say with great authority that the commodity forward curves mean EVERYTHING to the professional trader - serious big dick swinging specs and both consumption and production commercial desks I speak of.
If you're in this space for size and you don't know the role of Glencore, Bunge, Louis Dreyfus, Cargill, Koch, ADM etc. etc. then you know dick. Nothing. You're trading in the dark. I'll put it to you this way - if you had a trading relationship with OTC brokers like Amerex, Prebon Yamane, Tradition, etc. etc. you'd sure as hell know. The futures are the dog's tail - OTC is the MF'ing DOG.