In regards to dc5 and the breeder he knows that culls normals, I would strongly suggest that if you feel uncomfortable telling us who he is (only assuming it's a he because you referred to him as such in your posts), you have him come on the forums to identify himself.
My thought is that the only reason why this breeder would not make it public knowledge that he culls normals is that he knows that his actions are wrong. If he didn't think it was wrong, he could surely make an argument for himself that would bypass any serious, at at least widespread, condemnation. People should be aware of the practices of breeders that they're buying from, and unless breeders are transparent about these things, there's really no telling. I'm not saying these things because I want to see the guy crucified on the forums, I simply think if one decides to cull normals, they better have a well thought out reason to do so.
Anywho, these are just my thoughts about it. I think a name would be very valuable, as would an explanation from your breeder friend. If the breeder is too afraid or ashamed to do so in a public forum, my only conclusion would be that he himself knows what he's doing is wrong, and doesn't want to lose business as a result of his actions. If even he recognizes that what he is doing is gray, I don't think anyone, friend or foe, should be protecting him.
Cheers,
-Matt