I have a snake that developed kinks as an older hatchling. She didn't suffer any trauma. There was one, then some, then a lot. It happened very quickly. For a time they looked HORRIBLE. She never seemed affected by it, except for some loss of control from the first kink, down. She sheds and eats and grows normally, and stays even with another snake of the same age and weight.
Who knows why it happens, but you have to ask yourself, would you want to buy a baby snake out of a parent who has kinks of unknown origin? My answer would be no, and I won't be breeding that snake. You probably should inform the breeder, too.
At least in my case, it happened within the first week I had her, so I never had big breeding plans. With Beth's Vidalia, she was a beautiful sub-adult snake with a promising future and many people who'd have loved to have a baby from her.