O.K, but you said "it is frowned upon here to use anything but rubbermaids/tubs"
Umm, no.
Yes, you can have issues with a 50 gallon or a large tank, and all of those points are accurate. With a young bp, it WILL feel insecure in a large tank if the correct measures are not taken.
The point is to show new comers the easiest and proven ways to be successful, there are MANY other ways to house ball pythons including in large tanks but when someone says "help my bp wont eat, btw it is a 200 gram baby in a 40 gallon" we can see right away what the issue MAY be.