Its a case of Please read the manual....(Read The F'ing Manual) that causes the problem....
It states that the handbrake should be applied lightly for a hundred yards or so every few months.... this keeps the inside of the drum face clean and the shoes de-glazed....
As for not using it because you have an auto.....words escape me......you need the handbrake for an MOT as an absolute minimum.....if you dont use it then you deserve to have to strip it down or risk a failure every year!
That and the thought of 1.7 ton placng constant load on the diff, prop and gearbox......
Use it or loose it.....it will seize if you dont.
Interesting point about dragging the handbrake. Never had a car with separate handbrake shoes.
The only time people use a parking brake in the states is a manual on a hill. No one ever uses a parking brake in an auto, and when it's flat you just leave the car in gear in a manual. I use the parking brake in the miggy on a hill, b/c nasty getting out of P if a heavy load on it. The cars can certainly take it though.
Thankfully current style parking brakes are going the way of the dodo. Now just part of the ABS system with a little button. Less junk to maintain, and should be working on all 4 wheels.