How quickly we forget. Long before that, back in the USENET days, it was a common joke to include a .sig line "for the ECHELON line reader" with a list of words

How quickly we forget. Long before that, back in the USENET days, it was a common joke to include a .sig line "for the ECHELON line reader" with a list of words that the presumed NSA computer would match against, like "KGB nuclear anthrax bioweapon" etc. The joke being that if everyone would include these, they would end up having to analyze the entire newsgroup feed.