CTTAndrewF wrote:
Can someone explain to me the theory behind this "boot the goat" strategy that Cirie has been credited with starting?

Why was she so upset that Shane was going to bring Courtney to the end? Is this strategy only really viable for people that don't stand a chance at winning the final immunity challenge and want to avoid a Rob C/Kathy O/Terry Deitz-type 3rd place finish?

This strategy is only viable for someone who doesn't stand a chance at winning the final immunity.. In Panama almost everyone was looking as Courtney as a final 2 goat. Cirie could do the math and realized that in order to keep Courtney in the game, her allys would soon have to turn on her. She jettisoned the Goat leaving a place for herself in other peoples' strategies. Courtney would have breezed through the F4 TC with no tiebreak.