I've taken the survey.

The Prisoner's Dilemma question didn't do it for me. What will happen to the remainder of the $60? Will it be burned? Also I make enough money that winning $30 probably isn't worth the hassle and security risk to transfer it into my bank account.

EDIT Wow, that came out negative! Thank you Yvain for organizing this survey! Depriving money from you does not seem like an altruistic option.