In regards to Melissa's diary:
I just take it as HER OPINION. My point is if you already have it made up in your head that "all sorority girls are _______" no amount of TV will change that opinion (personal interaction maybe, but certainly not a TV show).
Additionally, for her to make that statement as too why would a non-jewish person want to join a jewish sorority is like asking a Caucasian woman why does she want to join a predominately black or latina sorority and vice versa. (Everyone has their own personal reasons as to why they joined XYZ sorority, Inc.) That question and also the tone of her post tells me that she is probably already a "GLO hater" and nothing would probably change that.
Which brings to my next statement.... what were the greeks doing on her college campus?

Were they carrying themselve in a positive light and manner or were they perpetuating the stereotypes of greek life which in turn shaped her opinion in the first place? Hmmm.......