Fans are often the people who do the worst with things they like. I mean, have you ever taken a glance at fanfiction.net?I'll say that Star Trek was utterly awful (although that was on the writers primarily, and we have Kasdan here), but I've been watching random Abrams things recently to see if he's any good outside of franchises he doesn't care for, and the results are iffy.
Star Wars fans are the worse fans in the universe. Everything breaks the fan base, every new work or media project is polarizing. Nothing ever satisfies. But then Star Wars itself is too big to just have one person's vision dictate the quality, and often times the multitude of product will feature some 'less than stellar' stuff.
Still it's hard to name a franchise that has fans who berate new major installments (movies for films series, books for Harry Potter/ASoIaF) quite like SW, where the mere mention of a new movie or series of movies will be met with pure skepticism and also treated as the second coming by others. We should be overjoyed at the prospect of not only a new movie with the original cast, but two entirely new series of films, one dedicated to telling side stories set during the most popular time period of the original films. But SW fans suck, and they suck hard. They can't even decide whether some little plastic model space ships are worth playing with based on the imagined cost of one or two extra points relative to 100 point lists. Nothing is perfect, everything has ruined my childhood forever. There was an article several years ago that said it best: SW fans love the concept of SW, but hate the execution of that idea.
I really hope this new movie doesn't suck!