Hey, Andy!
You got it to work! Fantastic!
Perhaps I should explain what a "spoiler" is. (It may be an American term that's not used in Australia.) A "spoiler" in movie terms refers to something that would spoil (as in ruin) a surprise that a first time viewer may want to experience watching a movie rather than be told beforehand.
I suppose the term can be used for sporting events watched on a time delay/recording as well, but since we talk about movies here mostly, I thought having the ability to "hide" things about movies would be useful when we talk about them. This way the folks here can read about a movie they haven't seen yet, but still keep the stuff they don't want to know yet hidden.
Hope that makes sense!