If your experience is ruined THAT easily by something as insignificant as "spoilers", then it just means the material it's about (be it movie, game, etc.) simply isn't that interesting
@ThoD Quite the opposite. If you're really engaged in something, you don't want to hear what happens before it happens. Maybe you don't care, but most people do.
If the material is really good, spoilers shouldn't affect your experience AT ALL, it's only sub-par things that get ruined by spoilers. Big whoop if you know if x person in a movie dies for example, if knowing that makes the movie not as fun it wasn't good to begin with, don't base all your entertainment on excitement over not knowing.