The UGA AGD website:
http://www.uga.edu/alphagam/
DoggyStyle82: "She mentioned that she was attracted to this org because of its diversity. I infer that that means they have (had) non-white members."
If you check out the website it seems that the chapter is diverse in the "Hey, they're not all blonde and beautiful!" sense. At some schools having brunettes and redheads makes you a diverse chapter.
"She lived in this house for a whole year. She didn't hear or notice any racism or bigoted remarks before now?"
If she joined in Fall 99, at most she only lived in the house during Spring semester. It's also possible that she didn't live there at all last year. Depends how full the house was. I think it's concievable that in five months she didn't hear or notice anything. When you're living with that many girls it can be easy to miss things.
"She states that most of the chapter gave the Black girl high marks, so the whole chapter can't be racist."
She stated that there was a mix of scores. If the woman had low enough marks the first night to be discussed then that means most of the girls that met her gave low scores. After discussing the black woman, most of the chapter would had to have voted to drop her. Does this mean that most of the chapter is racist? No. But it means that enough of them decided to trust the opinions of their racist and prejudiced sisters. Also, one of them could have pulled the classic "I'll deactivate if that girl joins!" That'll get you what you want every time.
"Isn't the sister better off not becoming an "affirmative action" member who will receive the cold shoulder once she is a member? Wouldn't she be better off rushing an inclusive sorority. They must have made her feel comfortable if she decided to rush that particular one."
Yes, she's better off not becoming an "affirmative action" member. Perhaps that's why so many of the members allowed the racist and prejudiced ones have their way?
The black woman was going through NPC Formal Rush. She HAD to go to all 18 houses on the first night. For all we know she never wanted to even visit AGD. But if she didn't, she could have been dismissed from rush all together. She had made the decision to go through this rush, she must have felt that she'd be welcomed at at least one of the chapters.
There could be something else going on that we don't know about. But for now, I believe that the AGD member made the right choice.