This question already has an answer here:
HOT NETWORK QUESTIONS section in the sidebar shows a lot of Marvel Universe questions from the movies SE site right now. Some of the titles spoil (little) parts of the story. This is annoying. What can be done about it?
This is a significant problem because those spoilers are shown to literally millions of people all over the SE network.
Also: It is the aspiration of Stack Exchange to eventually reach pretty much everyone on the planet with their network of sites. Is it their secret diabolic plan to build a gigantic spoiler distribution machine?