#1 - they probably do crack down on other behaviours, so I don't think the overall policies would be considered sexist #2 - it does annoy men, none of the sign

#1 - they probably do crack down on other behaviours, so I don't think the overall policies would be considered sexist #2 - it does annoy men, none of the signs indicate that only women are complaining (although the article does give that impression) #3 - sometimes making people consciously aware that their behaviour is inappropriate does work