I'm not sure why there is so much emotion attached to this subject. The facts are really easy to discover and interpret. It seems that people who own trucks that are too light duty for their towables get upset when someone like the OP asks about vehicle weight.
I understand that it is upsetting when you are reminded that the manufacturer of your truck set weight limits that you are exceeding. I know I was upset when I learned that my Ford F150's MGWR was being exceeded by my TT's tongue weight. I towed for all of last summer without knowing this. Everything was fine. Does that mean that Ford is full of baloney with its spec? I really don't think so. It is to the manufacturer's advantage to claim the highest possible GVWR. So, I assume there is a good reason for the numbers they put on my sticker.
This fall we traded the 6-month-old F150 for a new F350 because I don't want to discover why Ford set those limits. Ironically, last month we decided to trade from the 27 ft 7,000 lb (loaded) TT to a 36ft 13,000 lb (loaded) 5'er. This time, having learned my lesson, I made sure that the new fiver was ok to tow with our truck.
So, if you choose to exceed the factory numbers for your truck, that is absolutely your decision. However, you may want to consider whether you should suggest towing over weight to someone considering a truck or RV purchase. The so-called "weight police" seem to me to be people who want to help newbies make informed decisions about what they are contemplating buying.
Let's face it, you could go decades with no issues towing 1,000 lbs overweight. Or, in an emergency situation, the overloaded truck might fail at a time when you need it most. Again, your choice; but consider telling others to do the same. Do you want to take that responsibility?