During her long lifetime, Ying Goo was many things. She was a queen (Dali), a mathematician, and a martial artist (quite a formidable one).
She was also, post-royalty, quite a recluse. Ying Goo's reclusiveness almost rivaled that of the Ancient Tomb Sect members, and she received few guests.
Was wulin in general aware of Ying Goo? In a world where, strangely, even the Greats seem to be unknown outside of a select circle, Ying Goo seemed an obscure presence in the wulin of LOCH and ROCH.
Finally, at what level were Ying Goo's martial arts? Was she superior to the likes of Au Yeung Hak, Yau Chui Gei, or Mui Chiu Fung? The only people we saw her fight were 1 Deng's disciples (she defeated them without much trouble), the 19-year old Gwok Jing (she was unable to defeat him), and a thirtysomething Greats-level Yeung Gor (she could do nothing to him at all). What level does that put Ying Goo at compared to other LOCH and ROCH martial artists?