Londonmyst, you certainly have a way with words!!!!
You need to acquire some firsthand experience of angry italian pizza purists whose relatives own pizzerias and cafes. I have shared a kitchen with fiery italian pizza purists in the habit of seizing pineapples intended for pizza, throwing 140 decibel tantrums on sight of a pineapple pizza and reeducating the pineapple loving culprit while aggressively waving kitchen implements. Don't try translating marmite muffins into italian, unless you want to start WW3.
Pizza is warm and has a distinct taste. Pineapple is cold and has a very different distinct taste. They do not belong together. Its just wrong in every way.
Eh, it's sort of like mar-mite, people either seriously enjoy it or hate it. I just don't care and let whoever likes it like it. (Unless I order a pizza with them and they get pineapple and that's it )