The article links to my github repository for a wordsearch utility I wrote (here: https://github.com/jamis/wordsearch) and it includes a description of a technique for embedding a message in the unused letters of a wordsearch puzzle.
From the article: "(Bonus: the letters left after finding all the words spell out one of my favorite features of Ruby…)"
So it's clearly been done. Or did I misunderstand something?
From the article: "(Bonus: the letters left after finding all the words spell out one of my favorite features of Ruby…)"