Let me explain my sarcasm: when people show contempt for the idea of actually looking at reviews, and say "Why do you let other people decide what movies you should go see?", they are implicitly saying that one is obligated to go see a movie themselves. After all, choosing not to see the movie is letting others decide for them.
So, presuming they are not in fact hypocrites, this means going to see *every* movie. After all, the only valid judgement is your own experience. And since they clearly would not be advocating that others do something they themselves do not do, clearly they must be independently wealthy and go see every movie released. After all, obviously they wouldn't be advocating that other people spend money on movies they themselves aren't willing to see, right? I mean, the alternative is that contempt for reviews actually has nothing to do with any obligation to personal experience, and is just a way to validate their own personal biases, and they actually totally listen to "other people" for the vast majority of movies they choose not to see. But this couldn't possibly be the case, right?
So, to turn off the sarcasm for a moment: yes, this is totally the case. Every single person relies on "other people" to judge movies, all the time, whether it be reviewers, word of mouth, or the marketing campaigns advertising the movies. And there is absolutely nothing wrong with this. The only way to even know about a movie at *all* depends on other people. Likewise, there is absolutely nothing about looking at the information about a movie, and going "I'm going to see it anyway", because even the worst movie is going to appeal to *someone*, and maybe you'll be that someone. Which is fine!
Trying to provide universal objective validation to one's own taste in movie through incoherent, hypocritical contempt for the concept of criticism? Is not fine. At best its a show of insecurity, and at worst it diminishes everyone involved through its disregard for basic logic. If you don't agree with a particular critic or viewer, that's okay. . . but don't then go condemning the idea of listening to others, *when you are asking others to listen to you*.