First off let me just say I'm surprised that part of a post of mine prompted a whole new thread. Wow, that was unexpected. I'm flattered.
Second, for anyone wondering all I will say is that you have to trust me that there was just cause for this girl to get her pin pulled. It was NOT a case of girls being petty or catty. She was given numerous chances to change her ways.
Finally, how did we handle it? We took the high road. We informed Student Life and Panhellenic privately that this person was no longer a member so they knew her actions did not reflect on our organization. Actives were told that if this person's name came up in conversation around campus they should simply say she is no longer a member, nothing more. If they ran into her, they should at least be polite.
As Tom Earp suggested, word did spread around campus. Of course not as quickly as some would have liked, but that's life. Eventually it became rather embarrassing for her to be seen as clinging to something she was no longer associated with. The actives on the other hand showed they had class by not bad mouthing her and high standards for whom they choose to associate with.