My Live ID is tainted

Wanted to register for an event by Microsoft. Logged in, then clicked sign up. WTF, how come my profile name is Kheirul Aizat? Nvm la, since I wanted to go for the event, so I changed it to my name, then click send. I wanted for the never arriving confirmation email. Then I realised the email address was filled with edo [ at ]  nierchi [ dot ] net. What a bummer. Why that bugger infos are in my profile?