Nah, its nothing chemical or anything, its really just certain people. It's like any group of people. You can even see it in school, different groups of people talk differently than others, not because its just how they are-- they're CHOOSING to talk like that. This is litterally (no offence to anyone) a gay trend. Most gay people choose not to really be different at all other than their sexuality, but some actually want to act like women. Thus the accent comes up. Its actually their (usually bad) attempt to mimick the way stylish women talk.

