Also, going back to the “hypocrisy” bit (where some questioned how the school could encourage their students to sign up for Facebook to enter a contest, then ban it):
Couldn’t it be that the hanhala of the school simply did not realize at the beginning exactly what Facebook is? Perhaps they didn’t realize how much objectionable material can be accessed via Facebook, and once they realized their mistake they reversed their policy.
Hevai dun es kol ha’adam li’kaf zchus.