Dubby=Male or Dubby=Female?

So, I message this person "khydadriamen" on AIM, telling them to come post on Zelaron(as I often do to random people on AIM that I don't know.)

They talk for a bit and I asked them who they were here at Zelaron and they reply "Dubby."

I searched google for "khydadriamen" and got hits here for the username "Tai." So I asked them if they used to be Tai, and they said they hadn't used that name in a long time.

So I'm thinking, alright, they used to be Tai, came back as Dubby after being gone for a long time, and that was that.

My question is, why does Tai's account say "Male" and Dubby's account say "Female." WTF?

Tai's account: http://zelaron.com/forum/member.php?u=3400
Dubby's account: http://zelaron.com/forum/member.php?u=13655


[09:51] PiMPiNReDHaTMaN: Who were you on Zelaron anyway?
[09:51] PiMPiNReDHaTMaN: Tai?
[09:51] khydadriamen: dubby
[09:51] PiMPiNReDHaTMaN: According to Zelaron, you were Tai
[09:51] PiMPiNReDHaTMaN: at some point
[09:52] khydadriamen: i havent used that name in years :|