I fail to see an issue here to be honest. If I know someone is X I'll refer to them as such, but if I don't I'm not going to go out of my way to confirm a gender and will default to he until corrected. This isn't me trying to be mean or evil it's just making the safest bet when 9 out of 10 players are guys. I'm not going to call everyone by their characters gender just so I can be "right" that one time it's not a dude behind the keyboard.
