On the other hand, I've known breeders who have raised a dozen generations of snakes on pine substrates without any problems whatsoever. So I guess the question is, who are you gonna believe? Keepers with 30+ years of experience or 'internet experts' and Vet Techs who know how to use google?
Hmmm, I guess you could always use repticarpet... You could probably sanatize it properly if you have access to an autoclave.
True repticarpet story: Many many years ago when I got my first leopard geckos, I set them up in a 10 gallon aquarium with repticarpt substrait. I figured it looked good and was easy to clean. I was a little surprised to watch the geckos get their teeth stuck in the fibers of the carpet every time they missed a cricket. They would pull and pull and pull to get free and even sometimes lost a few teeth in the process. I switched to newspaper after that.
(hehe: 'Pine Truthers...') that's funny.