@alda
I don't understand: you started explaining me about it, I thought you wished to do that.
I have no interest in conducting an in depth research about this topic, while instead it would be nice to have a bird's eye introduction.

You assume that I disagree with you, while I never said such thing.
I asked you questions regarding something I do not know.
I cannot disagree on something I know very little about.

I just find funny your example about Hawaiian pizza.
From the Wikipedia explanation I don't see how that fits the description.
Besides, why should Hawaiian pizza be frowned upon (except not liking it)