I know people have requested in the past to remove breeders names from the cat's pedigree to work around privacy issues why we can't look further back in the lines.
I also know people work tiredless and give all their efforts to create their kitties and I for one would be pretty sad if the credits of the breeder from the ancestors or even the parents are not visable anymore.
Sometimes people buy two cats and pair them and sell the result.
I have not really an opinion about that but it is good to see from which cattery the cats came also in case we like to pay a visit to that breeders shop or like to contact them to pre-order an offspring which I frequently do
So eventhough I would love to be able to browse further back in the pedigree than we currently can I strongly feel the breeder of the cats should remain visable.
Frequently a lot of love, time, money and efforts went into a breeding line.
This overrules for me the convenience of being able to browse back futher in the pedigree.
I like the pedigree as is 
