Maybe you can select few options in your config and character creator to set on how YOU want you character to talk like by setting in options such as...
Stronger,Full of himself, Shy, scared... its alot of work to add those options into play in dialog. It's much easyer to leave it to the standard MMO style like it alwas has been or just make 2 types of dialog for females/males. Theirs already some stuff for characters to in game to say to you based on sex but would really like to see if it's other way around.
