'bout time too. Think even 32 kg (70lb) is too heavy. Try lifting tons of them through a day. I've seen pax at check-in with enormous baggage weighing far more than that waiting for a shift change so they can try the next agent - one who might not charge an over-weight charge for four or six 100 lb suitcases per family. I guarantee they were never successful and several missed their flights. To all the pax out there... forget about moving house in your luggage. Take a boat instead.
Once upon a time (prehistoric) I used to unload 100 lb sacks of chemicals from boxcars, manually, in 30 below temps.