I’ve had pickle pizzas, and honestly they’re great. They work for a similar reason pineapple does. The sour and sweet compliments the salty fatty flavors. Done correctly, these can be great. Anyone who thinks, for example, pineapple doesn’t belong on pizza doesn’t really understand flavor balance. It just needs to be on the right pizza with the right proportions. You’re not wrong for not liking it, but you are wrong for saying it doesn’t work without trying it.