Don't forget the "shipping wars" that plague every fandom in existence. Look it, I don't care who you ship, but sending death threats to someone for shipping a couple is never OK. Sending death threats to someone for liking a book, movie, or comic within the franchise isn't OK, either. It's disgusting.
I don't judge a franchise based on how the fandom is. I used to be a big fan of Star Wars. I still enjoy it, and can rattle off trivia to you, but I slowed down after The Force Awakens came out. For me, as well as my dad, who probably has every SW book that came out since '78 up to a few years ago, the movie was disappointing. I don't care if you like the new stuff--just don't be a dick to me because I prefer the old stuff. And vice versa.
Do I wish more people would follow that? Yeah, but it's wholly unrealistic.