The ones listed as examples above, are not pservers, those are official servers, but different versions from different countries. Maybe it was just a note to NOT post pserver infos.
Yukinami - 68 Sin
Yukiant - 73 Priest
ShikoYuki - 80 Priest
ShikitoYuki - 68 Alchemist
*More characters with "Yuki" in them, just not the mains one I've gotten around playing with.