If someone wants to show in their sparkles WP outfit against me in ranch horse pleasure I don't care. If the judge is worth a **** he is judging the horse/rider per the class not what the rider is wearing or how much silver is on the saddle. From my experience, if a WP horse is shown exactly as a WP does in a WP pleasure class in the Stock/Ranch pleasure, they don't place well. That is not what the class is about. And the opposite can be the same, if I show my ranch horse in WP as I show in stock horse pleasure I won't place well. They are two different classes with the word "pleasure" in common. Yes both horses need to be responsive and collected but that goes for just about any class.
Also if breed show people want to show at open shows, that's ok! I know trainers that show NRCHA, NCHA and NRHA that use breed shows for schooling shows. I think it is fine for someone to take their horses to a lower level show to get them some experience.
And it is the best way to better yourself to show with against tough competition by upping the level your used to showing in. In anything you do, ride, rope, ride dirt bikes, golf..whatever
If you ride with someone better than you, it makes you step up your game(but hopefully not at your horses expense as far as pushing farther than his capabilities). Getting a little tough rather than getting complacent in a lower level is counter productive. I use shows as a way monitoring my progress with my horse. I hope to see improvement every time I show, or ride actually.
The no silver rule in the foundation shows have always made me roll my eyes a little. It just goes to show where most of these associations and rules are made. I know someone that said....
"You can always tell the difference between a Texas and a Nevada cowboy, the Texas cowboy drives a $50,000 pickup, rides a saddle that cost about $1000 new with silver that looks like it was made with a rusty screwdriver. The Nevada cowboy will ride a saddle worth more than a few months wages, silver so fine it hurts your eyes but a $200 pickup that barely makes it off the ranch to town."
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.