As far as "popularity" is concerned, please check Youtube how the votes were casted. Even Mostar95 bhai here says that his/his-family votes were casted while they stayed home all day.
the elections in Karachi are not a secret from anyone. These last ones, my mum came back very distraught from the polls, she was forced to put her thumb prints on a number of ballots, and by forced I mean hand grabbed and forcefully made to do it. Thats how they treated a 60 year old woman. She went to the polls sayingbecause she did not want votes entered in her name and came back having forced to put her prints on god knows what. and the sad thing is some would still blame her and people like her for 'supporting' MQM just because she lives in that city.