Yet another senior idol has called out the changing greeting culture among younger idols, and this time, it’s Girls’ Generation’s Hyoyeon taking the shots. Hyoyeon On November 29, Hyoyeon appeared as a special guest on SBS PowerFM’s Cultwo Show, along with veteran idols such as Koyote‘s Baekga and H.O.T‘s Jaewon. During the episode, they talked…