
I can think of one extremely successful breeder who uses different kennel names for different breeds. But I don't really see the point if you're not going to breed from the original breed again. But that's just my opinion!

I do agree with you about not referencing breeds -I have the same problem. Goldmali = obviously Golden Retriever and Malinois. Golden was my first breed, although I have never bred them. I did have intentions to, but for many reasons it never worked out. I now have no intention ever to own one again, once my 13 year old is gone. Instead I got into Papillons. So the Papillons I've bred have been Goldmali. Which doesn't make much sense if you think of the breeds making up the kennel name, but I decided to see it as just a made up word and as I'm known in one breed for it, don't want a different name for the other.
I do know a lot of people who have kennel names made up of different breeds, without even owning one of the breeds any more, so it's not unusual.