The really blurry word is the word they're trying to OCR; generally it doesn't matter what you type as it'll accept it provided the other word is entered correctly.
Of course your 'game' is hurting reCaptcha's goal of digitizing books.
Of course your 'game' is hurting reCaptcha's goal of digitizing books.
I like to do this as a game, to see what I can get away with, adds some fun to the drudgery of typing in a captcha.