14 adar (purim's kasha)

If it says in Rirkei Avos 6,6 that we learn out that someone who says something in the name of the originator brings geulah to the world as we see that Esther said Mordechai told her about bigsan and seresh's plot to kill Achashverosh (Esther 2,22), why does dailykasha never quote? What, they don't want to bring geulah!? At least half of their kashas are from Rav Yochanan Zweig from Talmudic University, and half of the rest are from bochurim there so why not tell everyone?