To me, it all just sound stupid. Female Machamp, female Hitmonlee, Hitmonchan, male Jynx, and male Blissey etc? And still change other Pokemon's gender? Come on it will be less eggs etc. The GM's and even some Admins broadcasted so everyone in-game heard that there is no difference between the males and the females. I think one of the reasons they removed the colours was because of this (Long time ago). It's just a difference between the sign of male and female, nothing such as attacks, defence, speed, luck, HP or cooldowns, or anything else, just about that you need both male and female to make eggs (not many of our Pokemon's can do that).
So theres no reason to add this....... Tottaly disagreed like the other times, lets just be as it is. Now it's not like that everyone buy male anymore, just someone maybe because they only want males (or females) of some certain reasons.