Admins are long time members that have given up everything to help create the combine. Started out as helpers and slowly worked their way up (example would be the new Galaxy Admin: Wilhelm von Ismay.
Moderators come and go but example is the two new moderators for the star wars community forum, I asked for volunteers and then the players voted on who would get it. Time will tell if they will do the a good job and stay with it or leave.
So yes it is possible, anything is possible when you like star wars as much as we do.