A wrecked tip has nothing to do with breeding, and if he is a normal male, he was not bred at all likely (very few, except that smallest of the small breeders, would bred a normal male).

And by small I do not mean that in a pejorative way, just a complete hobby breeder.

Snakes can lose the tips of their tails to bites, to infections, to stuck/constricting sheds. Could be that he was a wild caught snake, and it happened before he came into captivity.

All pure speculation.

But he is fine, it looks healed, those blackened scales will disappear (mostly) with time.

I have rehabbed many adult rescue BPs and most of them come with varying degrees of blackened scales/skin and rarely do they have a full tail.

Good luck with him btw.

Do you have any of his history?

Bruce