Maybe you could also address the reason WHY aircraft are sometimes overloaded.
The potential to overload our aircraft is something that occurs almost daily for me. The Jetranger is a great aircraft but in summer, with density altitudes of 5000' and passengers that routinely weigh over 100kg (220lbs), they struggle to do the job especially when the departure profile is near vertical! The client regularly asks why we only took two passengers when the aircraft has four seats. They begrudgingly accept the answer when we emphasise the safety reasons but at the end of the day the mighty dollar is the reason we are operating at the edge of the aircrafts ability instead of upgrading to an aircraft better suited to the task. In short the client expects champagne service on a light beer budget! I'm on a contract with a large oil & gas company so it's relatively easy for me to simply refuse to carry the loads in excess of MAUW, no one wants to be seen to be putting safety over profit, but not all pilots have it that easy. Unfortunately commercial pressure can be a powerful incentive to breach the rules because most of the time you'll get away with it.
CH