Not exactly on topic, but historical context maybe: Long ago (early 90s?) when it was guessed/assumed that intelligence agencies were scanning emails, emacs was still among the best ways to read and send email. So emacs provided a handy function to append a random list of "hot" words to each outgoing email in the signature, just to degrade the signal-to-noise of such surveillance.
It's still there today, and you can see the output via M-x spook.