You're saying they are the same culture. They aren't. It's more like a vinn diagram they intersect but are not the same. Spoiler culture also intersects with books as I know too well and with movie culture, as I also know too well. And youtube thumbnails spoil as many movies as they do games. We all remember the endgame fiasco, I'm sure. Books are mostly immune from digital spoilers but aunt Margaret is a bitch and hates me so I usually hear the end of some books before I read them and book clubs suffer from at least one mouthy member or two that read faster than the rest of us.