Glenfield - firstly, I don't think the program on your machine is the "will remove 20 stains" one, as they are advertising that as new now with their current range.
I think these anti stain programs are a bit of a waste of time really - if you use the correct programs with the right amount of (bio or non-bio) detergent (yes, even without additives) then clothes will come clean and stains won't be stuck in. Sure, the manufacturers like a gimmick, and why not when people will pay for it. When you say you're not sure how people years ago cleaned - have you asked anyone? The majority of people stuck with the normal standard programs and actually didn't use lots of additives.
I think these anti stain programs are a bit of a waste of time really - if you use the correct programs with the right amount of (bio or non-bio) detergent (yes, even without additives) then clothes will come clean and stains won't be stuck in. Sure, the manufacturers like a gimmick, and why not when people will pay for it. When you say you're not sure how people years ago cleaned - have you asked anyone? The majority of people stuck with the normal standard programs and actually didn't use lots of additives.