Fandom is like a coin. A coin that has a shiny surface on one side and a dirty, rusty, smelly layer on the other. Some fans can have the passion and diligence to elevate the media while being respectful, while a lot of fans can be just down right hateful because it's easier to do so while contributing to nothing
For example, Gintama anime subreddit. It is such a pleasant corner of reddit. Everyone just caring about the show and characters and jokes, that’s all. I have rarely seen a hateful comment or post.