Everyone has their little food-isms. Some people get all freaked out by parsley, or can't stand the texture of coconut.
Mine all fall under the category of "Spicy." I don't do spicy. I don't put pepper (which to me is spicy) in anything - literally, not ever, and this was a bit of a thing when I was writing the recipe section of my book because apparently it is very weird to say "season with salt" as opposed to "season with salt and pepper."
Because...everyone on the planet but me likes pepper?