What I find really sad is it is being introduced into other breeds as well, for instance Paints and Appaloosas. I guess everyone loves the halter horse look
but it's a shame to spread it to other breeds.
By all means, if you have an HYPP carrier horse, love it and keep it! But should you be breeding it? I personally wouldn't. Yes, you *might* get a negative foal, but what if you don't?
Now I am just a trail person, not a show person, but I remember investigating the pedigree of a potential purchase (a Paint mare) for trail riding, and thinking, gee, it's a shame I have to research whether or not she is carrying HYPP. It turns out she wasn't, but I didn't buy her anyway because I bought a different horse, but how sad that a person even has to research these things. She did trace back to Impressive on one parent's side.
Now when I look at halter horses, I don't see pretty, I see potential for defects.
It shouldn't be that way.