I just wanted to make some clarifications. Displaying the breeder is not a "standalone" descision, but necessary to add functionality to the pedigree.
The Pedigree now allows you to access pedigrees of cats you own OR bred, compared to before where you specifically had to own the cat to access its pedigree.
To show which or why pedigrees are accesible for you, both the owner and breeder are shown.
Without the breeder tag, it would be unclear to know what you can access.
The current way of displaying "You" and "Someone Else" is sufficient but inconsistent as the owner names are fully shown.
It also lacks the ability to clarify why visitors via a pedigree link could access other cats no longer owned by you but which you bred, as they will see all as bred by "Someone Else".
I can see however why some would or wouldn't want to show the breeder names apart from showing access.
I'm also adding this message to my initial post so it wont be lost.