I'm not really a fan of account trading anymore, however, https://bitcointalk.org/seclog.php indicates following line:

Today at 07:50:19 AM - hardpick - password reset via secret question

If i'm not mistaking, using the secret question still locks your account.

Just a guess here, but the email you received *might* be the email you got when you changed your own password, but then your account *might* have gotten locked because *somebody* tried to use the secret question... Just guesses here.

Anyways, expect your account to be neg tagged by DT members that dislike account sales pretty soon. A neg tag will not stop you from achieving your primary objective (posting pictures), however, it will stop you from trading without the use of an escrow.