I think I meant it literally. That is, a poor choice of substrate is a poor choice of substrate, it doesn't matter if its the wrong soil type or newspaper, they are BOTH bad.
I am really not sure how to say this, but there is no yes or no here, Newpaper has some uses, you can keep a monitor healthy on newspaper. But its very limited as to what actual benefit it has for the monitor. Particularly when you are looking to include normal behaviors for the caged monitor.
Most here, do not include normal behaviors, most do not know what these behaviors are. Oh of course, basic behaviors like feeding and pooping, is the normal goal. So to those folks, newspaper may be fine. But not for the animal.
The point of my post was, monitors know how to use some tools, these are the tools that are included in their normal habitat. Things from other habitats, may be of no use to them, because they do not know how to use them. An example. Water monitors know how to hunt in water, above and below it. Yet, other species, only know how to hunt above it. Our gouldi types and even lacies, do not understand how to find food in the water, unless its swiming on the surface. They simply would starve if a mouse is underwater. But if you take that same mouse out of the water and place it on land, they will eat it up.
Well, that goes for substrate, If its a soil they do not inherently understand, they ignore it like it was not there.
A common statement here is, my burrowing species of monitor does not burrow. hmmmmmmmmmmmmmmm odd statement, but very common here. How could a burrowing species of monitor, not burrow????? Yea think it forgot how???
Lets go back, if you read about the gouldi group, books will state that V.flavirufus, lives in sandy areas, while V.panoptes, lives in wetlands and V.gouldi, lives in hardpack soils. WHY would it say that? Now, why would all these similar monitors not live in the other places?
The truth is, you can find them in the exact same areas, and yes, V.flavirufus perfers sandy areas, and gouldi is not limited to sandy areas, and will include hardpack soils, and yes, in the same area, V.panoptes will pick wetter situations or moister areas. WHY?
This goes for all monitors, They simply do not understand what is foreign to them. So the wrong substrate type is wrong, whether its newspaper or topsoil.
I understand you are now believing that newspaper is bad, and your right, but only compared to something better. The questions is, does that make a totally foreign soil type better? No it doesn't, in many cases it wrong soil type is worse. It can be slimy and muddy, full of rotting material, etc etc. In that case, newspaper is better.
On the otherhand, the right substrate is better.
One little analogy, If I gave you this fancy tool, but you do not know how to operate it, what good is that tool? If you do not know how to work it or what it does, its of no good what so ever. Cheers