I think some may not understand the distinction being made to help puppy buyers make a choice in breeders.
A good breeder will tell you if their dog is champion-sired, champion grand-sired, etc. they will not vaguely mention "champion bloodlines."
Poor breeders like to draw you in saying they have "champion bloodlines." In this area you see it all the time! Almost any yorkie could be said to have champion bloodlines because somewhere, someplace, at some time in history, there probably was a champion in the family tree -- it just won't show up on an AKC pedigree.
I have called on some of these champion bloodline pups in my area. When pressed on the phone, they admit the champion is pretty far down and not on any 3-generation pedigree. So only reason to say "champion bloodlines" is that there is no champion in the immediate relatives.
As for the major-line name dropping. I am glad to be apprised of this problem. We don't see that much in my area (have to admit most of us down this way would not recognize the major lines -- I never knew them until coming to YT). But I am glad to know that just because one of the names I do know is mentioned in an ad, I should not take that to the bank. I should dig deeper. Just like with the "champion bloodline" I need to ask more questions.
I am grateful for the information passed to help novice buyers. No one is saying any particular seller is bad, just that there are some things that should key more questions. Don't get taken in by vague mentions of what seem to be quality traits. Get specifics. If you are dealing with a quality breeder, they will probably have already provided specifics. I know the breeder I chose had the dam & sire on premises, with the histories (both pedigree and health) of grandparents and other pups ready for me. She showed me pictures of several dogs in the line, other pups as adults, and plenty of AKC pedigrees for me to look at. I did not have to ask much. But they are not all like that.
Thanks to those sharing information to help us be more selective!