This matter is really very simple - it's called making a judgment call and being willing to accept the positive or negative consequences.
If Moxie prizes her individuality/fashion sense/personal statement to the extent that she refuses to compromise a simple nose ring during the rush process...more power to her! Everyone is free to dress as they wish at rush.
However, if she keeps it, she MUST accept that she is more likely to be cut. That's just a hard fact of life. She may not have a bid, but she'll have her "individuality" and a nose ring.
It all depends on what she values. Does she value having the opportunity to be a part of a sorority? Or does she value her personal style as expressed through her choice in accessories?
.....Kelly
