Anyone who doesn’t like anchovy pizza has never tasted anchovy pizza.
I've had anchovy pizza dozens of times. Hamburger on pizza as well.
I'll eat them if that's what the party host ordered, but I won't order either for myself. I like to keep it to about 4 toppings at a time or less so the pie doesn't get sloppy, and there are a lot of toppings that take precedence and preference over fish and burger.