First of all, the only bad reviews I could find for this book were people who came into it looking to read about fandom and were annoyed that the book is more about One Direction. That's fair, but I came into it knowing it was about 1D, so I did not have that problem. The author used 1D as a way to examine trends and ways of thinking across fandoms in general, but yeah, it was really a story about 1D fandom specifically.
The whole time I was reading this, I was wondering who it was for. It read a lot like a nonfiction article from Vulture or The Atlantic or Slate or something and when I looked up the author I see she is a writer for The Atlantic, so that makes perfect sense. I also was thinking well this book isn't really for me because I kind of already know all this, I was There, watching from the sidelines, but it also isn't really for 'normies' like my mom, who would not understand this book even though I think the author was good at explaining things without making it too tedious. The audience is probably people who are 'online' but weren't in this particular fandom and always wondered what the fuss was about.
I thought that this book did a good job of telling the story of the fandom from beginning to end, though there was a little more about the current state of 1D fandom on Tiktok which I wasn't super familiar with. It was glossed over though perhaps because it's more of a nostalgia thing at this point, but I'm still kind of curious about what makes Larries stick with this sort of thing for so long. There was a good bit of consideration of the ethics of what fandom does, interviews with fans who thought one way, grew up, and regretted some of the things they thought or said, as well as a great interview with someone called the "Harry Fairy" who was a troll in real life but in a fun harmless kind of way. I hadn't heard about her before and I liked that story a lot.
I can't really think of anything that I had a problem with, I think there were a few things that could have been discussed more that were not, such as Zayn leaving, the rainbow bear, the way that fans sometimes broke boundaries in real life with stalkeresque behavior - though I understand the book is specifically about the Internet. The part about how fans use Twitter to get songs or musicians to the tops of lists, the way that kpop fandom's tactics also follow similar patterns - it was all very interesting and well thought out.
The only part where I was like hmm was a purely personal issue. The author got into 1D fandom when the documentary movie came out, which I think was more than halfway into it. I remember when 1D fandom was like two people on my Tumblr dash who watched the X-Factor. I remember when they were playing What Makes You Beautiful in FYE in the mall and I asked an employee if they had the CD and he had no idea what I was talking about. I was there from the beginning! But it's fine. This is a great book.