No, this one's an exception though.
Do you also get mad at people who praise a film before they see it? Their's plenty of posts in this thread praising the film for how "fun" it looks, why are those different from people who think it looks like crap?
See, there is a difference between people enjoying and anticipating something and going around taking a shit on their enjoyment. As long as they go around anticipating something and not shitting on everything else like you have done, I don't get mad. You know why? Because people are enjoying themselves. I myself tend to not do to things i don't enjoy and leave the people that enjoys them alone. It's called being considerate.