Ball pythons are really not that different from any other animal we use as food or for feeders. I loved my pet rats dearly and sobbed over some of their deaths. But I also raise rats for feeders and kill and feed them to snakes and lizards.

If you have extra ball python hatchlings and you humanely kill them off and feed them to another snake that typically eats snakes as a diet, then I don't see anything at all wrong with that. I have fed DEAD hatchlings(ones that didn't make it out of the egg or were so badly deformed to not be viable) to one of the monitors before. I wasn't killing healthy hatchlings though, but I do have a market for normal hatchlings.

The only types I know of that eat other snakes though are kingsnakes and cobras, lol. So I'm little help there.

It's a touchy subject indeed. But then we also have had rat lovers who get angry at the very idea that ANYone would deliberately breed rats that they can't find good loving vetted pet homes for, and then use them for feeders. So a ball python forum would have a lot of folks who may feel similarly about hatching ball pythons.