And this is the story of how I learned that HN usernames are max 15 letters.
Z(enzi)z\1z\1c
, either ("Usernames can only contain letters, digits, dashes and underscores, and should be between 2 and 15 characters long. Please choose another.")I hope I remember this word if I ever have to teach how LZW compression works. It's better than 'banana'.