Racks allow me to have 10 plus ball pythons and not have a house full of fish tanks which is nice. I used to use tanks heck i still got them. If i had on or two bp's maybe i'd go back to tanks but i love all my babies so i'm all in on racks. Somebody already mentioned it and i agree that as long as you keep your bp's healthy that should be good enough for tank and tub people to respect each other. Some people think its important to have a nice display tank while others don't to each their own. Just recently somebody on these forums got a new bp that they claimed was living in a shoebox for the last two years. I'm guessing they are referring to tubs or racks. If so i felt that was ignorant.
Take this picture for example people really believe this is terrible. It's not. What i see is a relaxed healthy ball python that was probably getting a drink and to me that equals a happy ball python.
At the end of the day i've realized that's just the way people are gonna be. People just have to be needlessly hostile to each other over simple differences in the reptile world also in general and it's a shame to me.