It's fantastic how these people were able to play the metagame like that. I suspect that if you caught on to this, the best strategy would in fact be to impers

It's fantastic how these people were able to play the metagame like that. I suspect that if you caught on to this, the best strategy would in fact be to impersonate the Southampton players, mimicking the ten-move dance, and then perpetually defect, assuring the best strategy against either the "always defect" or "always cooperate" players.