The original post concerned horse hauling. I happen to have horses and have hauled them long distances on occasion. Most people who haul their animals know what to do and care for their animals like they are their offspring. Typically, the two or three horse rig is one thing, start getting larger than that and it becomes "questionable".
I also happen to have horses and I'm probably the guy that makes him cringe. My current setup is a 4500 with a 38' LQ 3 horse trailer. The trailer weighs 12065 with horses, gear, water and hay.
How about the guy with a 44' toy hauler behind his 3500 , where the trailer weighs 16, 000 dry and has a pin weight over 3200?