Just like I expect that visiting a web page about how frustrating malware is would infect my computer with malware.

Poor analogy imo. It's socially acceptable to talk about movies that were aired years ago with or without a warning. It's never socially acceptable to infect someones computer with malware prior to explicit consent. There's an expectation that someone writing about spoilers, will in fact detail the spoiler in question. Given that's an expectation you consent to being told about the spoiler by reading the article. If that isn't an expectation, I'm curious what you or anyone else had hoped the article would be talking about?