I feel exactly the same about stripes on snakes ... I have a Butter royal with a 5" stripe from her neck down partly down her back and it kinda irks me somewhat.
I'm ok if the Stripe is all the way down and it's perfectly symmetrical and SUPPOSED to be there like in Red Thai Bamboos or some King snakes ..
I think you just verbalized what I was feeling right there. It's almost like pinstripes are pretending to be a different snake and it just doesn't quite fit.