Nobody said you
did. Obviously her previous owners did, however, and God only knows how many siblings of hers, and generations before her.
This is essentially what I was saying in my earlier posts.
the resultant pups often are victims of being sold inexpensively to less knowledgable buyers who look at them as disposable.
The resultant pups, being viewed "disposable", are the ones sitting in shelters and rescues, or have already been euthanized due to poor temperament and/or health issues.
The difference between what your dog's parents owners did and what good breeders do, is that good breeders look at all aspects of a dog's make up - health, temperament, working ability (yes there has to be some), and match the breeding prospects up to enhance the breed, to make sure the puppies aren't a genetic mess, temperamentally and health-wise.
This is why so many allergies and other health issues and temperament issues are becoming so rampant in the breed.
AND all breeds are subject to this, not just GSDs.
Please remember Lee was speaking in general and about your dog's parentage and lineage, not you.
When posts like mine, and many of the others in this thread are made, they are often read by lurkers who are also thinking about breeding - and are thus very general and made in the hopes that the information given helps people other than the OP to make an informed decision about the responsibility of breeding dogs.
This is how I often post, and it's often misunderstood in the same manner, I can relate!