kd fart rumors :(

I just got a call from my daughter who was crying because of some bullying that is going on against the sorority she recently joined, kappa delta. She says she gets made fun of in class and people wrote on her dorm door "fart". She has never publicly farted (to my knowledge). She told me people have been posting about her "farts" on this site so I thought I would come on here and give my own two cents. Will a kind group of children please let me know why this is happening to such sweet girls?