also, it adds another element of suspense and suprise if you don't know what the other person wrote on the cards and with more cards the game gets less predictable. if you've got only 10 cards and 5 involve spanking then person drawing can be pretty sure they're going to experience some spanking, which can get boring but if the person drawing knows that since the last time he/she has drawn 5 more cards have been made and placed within the pile that she/he hasn't seen then its more of a mystery and that much more exciting