Problem is, some of the issues from housing snakes together can mean you dont know there is anything wrong until a snake is dead. Youre right, its opinion and here is mine.
1. There are no benefits to my animal by housing multiple snakes in one tank and Im not going to risk issues I can prevent just becuase I like how it looks.
2. Having to answer a phone call asking advice on how to pull a corn snake out of its cagemates mouth (both corns, and not a feeding day) was bad enough, I never want to have to deal with it myself.