Being a nerd is nothing to be ashamed of. Nerds rule the world! Who invented the internet? Nerds. Who created personal computers and smart phones? Nerds. Who made every video game you've ever played and ever will? Still nerds. Who sent probes to distant planets? Nerds, nerds and more nerds! I'm a nerd and I'm proud.
thought id keep this simple.
Anyway, I think if you want support for your suggestion you should post a few reasons why doors should be stackable.
A totally non-original signature.
Doors are stack-able since 1.8 snapshot , I don't even know why were they un-stackable in the beginning anyways .