I sent an e-mail to the above mentioned ID and it got bounced back. Details below. I think Microsoft never publicly post any information about the Usability studies. Hence, this is an illegal post.
This is the Postfix program at host mail25-va3-R.bigfish.com. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The Postfix program
<itusable@microsoft.com>: host
winse-6216-mail2.customer.frontbridge.com[205.248.106.30] said: 550 5.1.1
User unknown (in reply to RCPT TO command)