if you search anything in Youtube that is a coherent sentence, most likely than not (and I think this oughta do with the fact that Youtube's purpose originally was to record music and its info), you're gonna find music with those words, if not exactly as typed, even if you did not intend to search for such music.
Now, extrapolating this logic, in this world, imagine trying to speak without accidentally doing a reference.
spoiler
Hmm, I could go a lot more into detail, prolly include this issue with AI, and turn it into cover of 'Virtual Insanity' - ah well, I think 'Welcome to the Internet' has already done this sort of thing but still - I wanna leave my mark