Trannies aren't trannies because they crossdress, trannies are trannies because they falsely believe crossdressing changes their gender.
As far as I can tell, users haven't been acting as if that's something that can happen (once people realised foor was male, no one acted like the crossdressing made him female, and the new crossdressing guy isn't even pretending to be a girl), so it doesn't seem like there's some sort of tranny invasion.