There's a coordination issue here. I'm astonished that so many people fail to see it. The result of one person donating $600k to charity / the treasury is compl

There's a coordination issue here. I'm astonished that so many people fail to see it. The result of one person donating $600k to charity / the treasury is completely different than ten thousand equally-wealthy people all paying $600k. This person is saying "I will cooperate in a prisoner's dilemma, if and only if I can arrange a binding agreement by which others cooperate too", and a bunch of people are replying "then go ahead and cooperate; let the rest of us be free to defect"! (By the way... uh... what do you do to earn $750k? As someone earning about 1/20th of that amount, I'm curious for some pointers).