And while I agree that that ball pythons stress easily, I'm not sure anyone can say 100% that it's the biggest problem. I was just saying that in my experience, in horror stories I've heard, in people I've talked to, in the countless hours I've spent researching between books-internet-asking direct questions to big breeders, that if snakes can get killed off by the dozen in racks, what do you think will happen if they are kept together? That was my only comment, and you distorted it or misinterpreted it to say that "it is NEVER a good idea to house together." Which is not what I meant. Also IMO you are very quick to shoot people down who are trying to help, over little details that you misinterpreted.
I'm still not misinterpreting what you are claiming on disease. In properly quarantined and kept animals - it's not a factor.