Most likely yes. If he has an access to the previous email that is linked in avirunes profile then he can also use that as a proof more. With the screenshot I'm guessing he still has access on the email.

 Btw, there is already a scam accusation against acctseller that he did sold havked accounts and I am assuming that all the account that he is selling is cheap for a reason that it was illegally obtained. https://bitcointalk.org/index.php?topic=1429038.0