All things people like are subjective. As the hebrew saying goes, “?? ??? ???? ??? ???????”.
Yet, you will find that people like the same things. You can bet that if you serve pizza, 99% of the crowd will be happy. And if you serve tofu, 5%. And if you serve burnt popcorn, 1%.
So while it certainly is subjective, you should not be surprised if most people will generally have the same opinion.