Saw this on baidu tieba: Saet Byul, Bong Sup and Tae Oh had the same hand gestures (three-finger salute?)
Maybe Saet Byul was imitating Tae Oh’s trademark hand gestures.
But what about Bong Sup? He had the same hand gestures after he was released because of insufficient evidence. Maybe he personally knows Tae Oh, maybe there’s a hidden meaning behind this. Or maybe this is just a coincidence. =)