On March 27, 2008, Isoph created the iCarly Wiki. She was active until January 2010, when she had to leave for personal reasons.
Isoph has recently returned full-time to this wiki. Her new name is XSophieSakura. She transferred her administrative powers to her new account.
When you create a wiki, you are bureaucrat by default. Since she is the founder of this Wiki, she is its highest-ranking member.
I encourage you to give a warm welcome to XSophieSakura, and get acquainted with her. She will be very active here from now on.