I'm all for bending the rules
but those 7X/8X operators who choose to squeeze it in to Cannes with the reversible MTOW placard swicharoo are risking: A. a SAFA check for ignoring PCN numbers / being sued by Cannes airport for chewing up the pavement and B. dinging a shiny winglet on any of the dozens of spam cans that have to be moved out of the way anytime you want to taxi anywhere.