I can ignore this no longer. Add me to the list of concerned people. Even when pure bred dogs are bred, the RESPONSIBLE breeder does a huge amount of research on the two dogs that are to be bred to see if it would improve the breed.
Backyard Breeder
1. Motive for breeding: "fun", "good for kids", "to make money". Does not screen buyers and seldom refuses to sell, even if buyer is unsuitable.
Reputable breeder
1. Dedication to producing quality dogs is serious avocation. Has so much invested in dogs that he struggles to break even, not make a profit. Will sell pups only to approved buyers.
Taken from this link: http://www.jlhweb.net/Boxermap/reputablebreeder.html
Take a look at that chart.