Poker is zero sum. Adversarial. The only way to win is for someone else to lose, so of course we try to sow confusion. A market is supposed to enable trades th

Poker is zero sum. Adversarial. The only way to win is for someone else to lose, so of course we try to sow confusion. A market is supposed to enable trades that benefit both sides, because otherwise who would dare use it? Selling means I need money and I'd rather have the share price now, buying means you have money and you'd rather have the income in the future, and it doesn't have to be a regrettable mistake for either of us.