A Place For Everything
I don't think anyone should be "bashing" anyone else about anything they do regarding what they are breeding or why.
Every individual has the right to breed whatever birds they like.
Nobody has a "RESPONSIBILITY" to breed a certain way, for type, for feather colour or size etc. If a person takes a responsibility, it is their own choice. It is not forced upon anyone by anyone else, and nor should it be.
Nobody "HAS" to sell a bird to anyone else. However, if a breed is to survive, it's probably a good idea for breeders to share, and encourage new breeders to raise those birds, and raise at least SOME of them as purebreds and to type.
Sometimes, crosses can turn out better than either parent and produce a new type or breed itself (if it breeds true). This is a good thing. But, keeping the heritage breeds is good too, so that we have genetic diversity and a good gene pool to introduce into the new breeds. It is a shame when a breed is lost, because even though people "try" to re-create it, it really is not the "SAME" bird, but a copy, albeit a good one. I know this because I did a cross as an experiment, and every Icelandic fancier who saw it, thought it was a pure Icelandic chicken. In fact, the only way I could tell it apart from one of the PUREBRED Icelandics, was that I had banded the purebred before introducing her to the flock. And as you breeders know, most, if not all of us can identify an individual chicken at a 100 yards
I'm sure there are a lot of people out there, selling "crosses" as the real thing. This does a lot of damage to the breed and to the credibility of the breeders. So I understand WHY so many Cornish breeders are unwilling to sell eggs or birds to novices or people they don't know. It's a shame since there are some good people out there who want to continue to breed to type, as well as to experiment with "projects".
Just my take on thing folks - I shall keep breeding my purebreds and my projects, and enjoying them all. I shall be honest with anyone who buys a bird or egg, about it's genetics, and charge appropriately. I trust that everyone who deals with me does the same.