Agree it is a nice feature and good to have around. I have posted before that there are gadgets used to be called haul-gauges and now 'better-weigh' that plug into your wiring harness under the steering column and allow you to read out the weight of the vehicle, weight of the payload, tongue weight and all sorts of stuff. It feeds an app on your smart phone. Around $90 when I got one for Xmas 2 yrs ago. Actually works (which takes some study to understand how!) I see others posted regarding the better weigh system in posts 10 and 11 above now that I re-read the thread.
That said, there are a couple of problems with the F-150 feature in this thread. 1) It has no way to know what a good tongue weight is without knowing what the trailer and load are like. And 2) I am already hacked off big time because the vehicle manufacturers are obsessed with making them so complex they cannot be worked on, the dealer's techs stand no prayer of debugging them unless it shows a"code", and many of the self-inflicted wounds of the needless complexity cannot be accurately diagnosed, much less fixed. This is anti-customer bull crap at our expense. Costs you to buy it and costs far worse to try to fix it.
Case in point: the "CCD" (continuously controlled damping system) now going into GM trucks and cars and I see in the suggested website above also into Ford and I know from my own horror story with a Lincoln, they go into many "nicer cars." These #$%^&* systems take inputs from a large number of sensors and update the shocks settings every 2 milliseconds. What could possible go wrong??