You know saying things like this isn't going to help you convince people to switch to tanks, it's going to convince people to only answer your negative posts. What happens if you need help with something and no one wants to answer you because you're quite rude?
We don't "dump our snakes in Tupperware for convenience sake", we put our snakes in the habitat that works best for them. Now, whether that's a 55 gallon tank, a 34 qt tub, or a professionally made cage, it's up to the snake. Only an irresponsible pet owner would keep their ball python in an enclosure that they don't feel secure in. You need to get a feel for the individual snake before you come to a conclusion of what will work best.