Good article link, @MasterPlan. Apparently it’s the clavicle that gets crushed and deformed, not so much the neck stretched. So there’s still a deformity, it’s just elsewhere. Also the appearance is very dragonlike (dragons are an important part of their religion, they believe the Kayans are the result of breeding between a female dragon and a male angel/human hybrid).
As for the pics above. Oh puh-lease. I’ve changed my mind now. Give me the woman with body piercings or even the neck coils anyday! 🙂