Pizza is not meant to have pineapple on it. Please. Please, people.
Pizza is a good, chewy crust with a little tomato sauce, some cheese, and maybe pepperoni. Not too much. Much more crust than topping, for sure. Some crumbled feta is acceptable.
And a real Pizza Margerhita (Sp?) is a joy.
Everything else is foul, satanic, and just plain wrong.
Some people might like those things, but they aren't liking pizza. They are liking abominations.