Searching for 'Nageta, Sailor Earth' on Google 
did bring up a webpage listing:

Nageta's Earth Palace
... Hello and welcome to my palace.As you dont 
know me very well,my name is Nageta or
Sailor Earth.I live in the future and I went to 
the past to help the scouts ... 

But unfortunately the URL seems to lead to a dead 
page:
www.oe-pages.com/ARTS/Movies/sailorearth

Now if this is the same person, or just someone 
stealing someone elses' ideas/name is unknown. So 
even if it DID work it'd be unfair to jump to 
conclusions.