Welcome Derek.
I agree that Hannah is someowhat of a "disposable" character, and The WB is infamous for introducing such characters, so if she doesn't work out, or if she's just there to serve a specific purpose, they could easily write her off the show, like they did Laynie.
__________________
The energy, the faith, the devotion which we bring to this endeavor will light our country and all who serve it - and the glow from that fire can truly light the world. - John F. Kennedy
There are those who look at things the way they are and ask why - I dream of things that never were and ask why not. - Robert F. Kennedy