Allaruuu..
Obviously Allaru started the post but didn't follow up when asked to clarify what was his friend actually wearing at MOE when she/he was fined. Therefore to me he his just the usual fomentator.
Guys .. rules about dress code have always been there in the UAE and nobody should be surprised if from time to time the authorities decide to enforce them... dress smartly and conservatively and you''ll stay out of trouble everywhere not only in the UAE.