He is storing them in reversible format. If you want to recover your password, he gives you your password and he sees your password. There is no "password recovery" form on the site, and I think only way to recover the password is:
1) message rs that you lost your password.
2) tell a part of your password/describe your password, so that he can confirm "it is really you" who is recovering
3) he returns you passwords as a string and in the process he sees your password. When I did this procedure, I was feeling like my privacy has been breached.
Now even if you think I am moron, you know something you didn't know before.
And if someone has done the procedure, please confirm it is really done this way, as I am not making this up.