"Cached"? Cached where?
You mean it comes up in search results? That ain't "cached."
Were it cached, and had it failed when retrieved against, it would automatically have been dropped from the cache.
BTW, I saw your amusement (and bemusement), "Why is that important?"
Simple-minded scripts detect a word or two and ask questions that are often inane. It is about as advanced as 1960s-era ELIZA, with its characteristic "Tell me more about your mother" as a 'filler' when there's nothing else obvious to interject!