I'd say a vast majority of the plot holes I see brought up are just people complaining about something they didn't pay enough attention to or decided to turn their brain off before piecing together various bits of information found throughout the rest of the story. That's not to say there aren't legitimate complaints, but most of the time it normally is just coming from some angry person who missed or forgot important pieces of information and calls "bullshit" every time you point that out to them. In other words, I tend to not take people seriously when they start talking about plot holes unless they can actually back it up and are willing to carry a conversation when challenged without their opening word being "bullshit".
Oh, and then there are also the people that find something they don't understand in the early stages of the film and complain for the rest of the movie. Because, you know, there are never any plot twists in a movie or big reveals of past information...Oh wait! There are. Question all you want, but don't ignore the possibility that it may get explained later. And for crying out loud, when it is explained, don't demean the movie as if it was unfair or just stupid. It outsmarted you. Admit it...Sorry, I have had really bad experiences with people doing that.
With that said, if there is a legitimate plot hole, I can definitely see why someone wouldn't enjoy the work. Plot holes present flaws in the logic, and for anyone who looks at works in a more logical way, that can be a serious hinderance.