It's a fair question. There was another poster, a while back (maybe a year or so) that was really dissatisfied with the books and was rather bitter about it, and he and I got into a lot of arguments over it. After it went on for a couple months, I sent him a PM saying "Are you really enjoying this? It just seems like you're angry and unhappy all the time." He replied saying he hadn't really thought of it that way, but that yes, this was just making him mad, and he quit the boards to find something else that made him happier.
For that matter, I myself was active on Star Wars lit boards for a long while. When Legacy of the Force hit and managed to kill, rescind, or overwrite essentially everything I liked about the ongoing story, I was angry for a little while but mostly just left. Why bother?