Why do most people frown upon the production of Burm/Balls?

[Skiploder]

The same reasons I frown on all hybrids.

I have other reasons based in my desire to keep lines clean because if I buy something I want it to be that specific species because of the natural history aspect of it.

You do realize that squamate hybrids occur in nature? So how does that fit into the whole "natural history"
aspect?

Let's start with:

Pituophis Catenifer Sayi X Pantherophis Vulpinis

Crotalus Horridus X Sisturus Catenatus

Are we frowning on those as well?

Unfortunately, I cannot find any scientific evidence supporting snakes of the same species with known physiological abnormalities breeding (in the wild) with the sole purpose of creating aesthetically pleasing and financially profitable offspring.