There are some members who are notorious for playing all night or actually just all the time. This includes Hitomi, Yukarun, Yuihan, Harupyon, Hinana, so these are encountered very often. Nanase also seems to play a lot. Zukki I didn't know played a lot, thought of her like a rare encounter. My personal goal is to hit Rin, YuiYui or Mahopyon just one time, they are so rare. Even in their top100s you rarely see any of their silver titles.