It’s an Internet thing gone silly. I’ve seen pinable pizza in the local pizza places for as long as I can remember and it has never been a topic of discussions ? I had it as a kid 40 years agoI like pineapple on pizza and even had some really good Hawaiian pizza in Hawaii. It was great!
I don't get the hate. People love pineapple + pork in any other context but as soon as you put it on a pizza, everyone loses their minds. And I'm generally a pizza snob, too. It was a normal pizza topping in my household growing up, maybe that's the reason I can handle it...
Your either very young or impressionable or bit stupid if you care to form strong opinions about this , if you like you order them if not you chose another topping.