I didn't reject the game theory comment; I merely played the game according to my values. By adding my downvote to each and every comment in this subthread, I

I didn't reject the game theory comment; I merely played the game according to my values. By adding my downvote to each and every comment in this subthread, I have imposed a cost upon the average user for attempting to game the karma system with uninteresting comments. My downvotes signal that I would like to see fewer comments of this type. This comment does so more explicitly; I believe the utility I derive from discouraging karma-gaming comments (even those meant as a joke) is worth the risk of up to 10 of my own karma.