I think the spelling of one of the most used words in the English language is more signifcant than looney tunes that can be understandably misunderstood as looney toons considering it is a cartoon. I have never once seen any Star Wars movies but I always thought it was "Luke, I am your father" because I heard other people say that. People imitate other people. All it takes in this day of social media is for 1 person to say "Luke" and then everyone will eventually start saying it too.