Spoilers come in two varieties:
The early spoiler - This is a spoiler for something you learn between 1 minute and some early but arbitrary time into the game/TV show/book etc. These are the kinds of things that you usually see in previews, game intros, and other media. It's a spoiler in that it tells you something about the game you did not know, but it's not telling you anything you wouldn't have found out right away. I don't really mind these. Usually they motivate me to play the game (otherwise people wouldn't be telling me about them).
The late spoiler - This is well past that early but arbitrary time. This is well into the game. This tells you that XYZ is coming, ABC event happens, TGF character dies, and KFC is yummy. This generally ruins some element of surprise in the game. I try and avoid these like the plague not just because it ruins the surprise but it makes me wonder just when it's going to happen. If someone shows you a cutscene of someone dying in a video game, you spend the entire game wondering when it happens. You emotionally cut off that character to avoid getting hurt feelings later and you lose an element that would have otherwise been enjoyable.
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