Quote Originally Posted by larsmars
Quote Originally Posted by pankfish
Why in the hell would I stop playing poker just because some short stack playing with 20 bbs already has all of his chips in?
Game theory. If three players, Reg1, Reg2 and Shorty, find themselves in this situation repeatedly, both Reg1 and Reg2 will benefit from soft playing each other in the long term, on the expense of Shorty.

If the shorty is all in and beating me I'm losing the money in the pot no matter how many people are in the pot. Why would I care if the short stack gets my money or if reg 2 gets my money? Why would I allow an extra hand that is worse than mine stick around for free?