After reading this thread and thinking
I quickly darted over to my school's class of 2014 group. While there were scores of PNMs declaring their excitement to rush, there was not a single one of them that posted anything specific about any chapter.
In addition, save for one girl, all profile pics were 100% appropriate. Even the one wasn't too bad.
Either the panhellenic has done an excellent job of educating these girls or they just are aware enough to do not anything stupid that would jeopardize their chances.
Whew.