No one is as zealous as the newly converted.
I do want to say, for people who don't already know - the problem with BYBs, even if they are raising their pups in reasonable conditions, is that they contribute to the horrific pet overpopulation problem in this country. Even if a BYB gets all their pups to homes, there is no certainty that the pups won't later be abondoned, or bred, and then the grandpups abandoned.