Theft isn't people coming together for the purpose of aligning incentives so as to share information with each other while remaining rational. This has far more in common with Truth than it does with Theft. First and foremost, because it was by agreement that they entered into the arrangement - none were forced. Second and also motivating it, because losses are taken in hope: that a better understanding of the underlying conditions is obtained by the whole of the community which is of benefit to even the losing participant.