^What are you talking about? Being a fan is not about having fun. Don't you know that only the very first thing that ever comes out in a franchise is any good, and anything that comes after that is awful? If a movie does not descend down from the heavens and bring world peace, then it is the worst pile of shit ever committed to film. That is what the true fans of anything think.
The flip side is not being able to enjoy something unless there's universal praise from all quarters. Getting worked up over other people not liking something doesn't help.