Don't usually watch them anymore, but I chanced upon a recent Snake Discovery video where they had to remove their scaleless rat snake from his zoo exhibit enclosure due to constantly scratching his bare skin to the point where he had bruises and scars all along his back and sides. ...I think that speaks for itself really.
And in the very same video they went on about breeding more scaleless snakes. Cognitive dissonance at its finest (that or dollar signs since just like pugs and friends scaleless animals command far higher prices).