Plot leaks are a big concern for Game of Thrones, a show that thrives on keeping its audience guessing at all times. This is especially true now that the series has gone beyond the events depicted in George R.R. Martin's book series and no longer has to contend with fans spoiling events for the TV-only crowd. Not only have story details occasionally gotten out early, but whole episodes have sometimes made their way prematurely to the world, providing an opportunity for unscrupulous individuals to fill the internet with spoilers.
Many fans make a major effort to avoid stumbling upon any spoilers, but with the profusion of internet content about their favorite shows, sometimes reading them is unavoidable. At least one Game of Thrones star wishes that fans of the show didn't have to worry about this problem at all. And in fact, she's very upset that leaks remain an issue.
“It hurts. It’s just like, oh we wanted to tell this story, and yeah, lots of people don’t want to read it, and don’t want to look at it. But then it’s even more annoying when you know [the leaks] might be from someone on the inside, and it’s just like… you’re trying to make something really cool, that is really cool, and people really like, and it’s like ‘stop ruining it’. It’s such a childish, annoying thing to do. And yeah, it’s sad. It really annoys me. I don’t know if that’s unexpected, that I’d be like ‘Oh, I don’t really mind!’ People still watch it, but it does really grind my gears.”
Plenty of rumors are already floating about what will happen in season 7, including a report posted on a popular Game of Thrones fan site about an anticipated reunion between Williams' character Arya Stark and her siblings Sansa and Bran (who haven't seen each other since the events of season 1). It wouldn't be surprising if this very rumor was what set Williams off on her rant about spoilers. Clearly, she would prefer if fans got to experience these huge, emotional moments without details being leaked early, and she probably has a point.
You can understand Maisie Williams' frustration with leakers and spoilers, considering how much hard work she and the cast and crew members of Game of Thrones put into making the show. Williams wants the fans to have a great experience and when spoilers get out there, it can diminish that experience.
Unfortunately, leaks are always going to happen, but with any luck, the most meaningful revelations will be preserved for next summer, when Game of Thrones season 7 hits HBO.