Plenty of players in Parallel World had experienced PvPing, but few came close to attaining Gu Fei's extreme levels at it. The average players would fight and kill on given occasions, but they would often strive to keep their PK value below 10 points if they could help it. The Mages who would act as the ranged artillery of their groups and guilds would often garner a rather high PK value as a result, but they would rarely go past 20 points.
Therefore, excluding the Insta-kill Mage Gu Fei in the count, only a handful managed to cross such a historically unique threshold of accumulating over 20 PK points.