Yes, it's an admin link. If you want to put this into a user-side template, use this URL:
<a href="gforum.cgi?username=<%escapeURL user_username%>;<%hidden_query%>">
Jason Rhinelander
Gossamer Threads
jason@gossamer-threads.com
<a href="gforum.cgi?username=<%escapeURL user_username%>;<%hidden_query%>">
Jason Rhinelander
Gossamer Threads
jason@gossamer-threads.com