SLF
SLF as a term may, or may not be "insulting". I believe that it is. Someone else may disagree. That's fine.
However, the use of the phrase/term is indicative of a sector that has little idea of the modern realities of customer service.
The (ex) civil servants that still inhabit big airline and other national carriers need to remove the various cultural bricks in the wall that relate back to their "old" days.
Each and every use of the term "Self loading freight" by someone in Aviation just shows how far Aviation has yet to move to truly serve its customers. Customers are the only reason nowadays for anyone in Aviation to have a job...........the Govt might save BoS, but it won't save either big airline or any other carrier.