LogFAQs > #970414843

Both those things you mentioned were either before the internet or before social media, and it was pretty easy to avoid the pop culture zeitgeist back then.

Eg I'm glad I never got spoiled on the thing in Harry Potter book 6, because years later I saw a youtube video of an ass who was driving around yelling the spoiler to people waiting in line.

Basically it comes down to getting off the internet, and simply not being interested. I'm not interested in star wars, so any spoilers are meaningless. If you don't know the original reference material, you won't even register it as a spoiler.