I disagree. By not putting it in the subject line, the recipient can wait to open the email, and make a conscious choice about where they are both physically an

I disagree. By not putting it in the subject line, the recipient can wait to open the email, and make a conscious choice about where they are both physically and mentally when they learn the outcome. If it's in the subject, then you learn it immediately when you happen to check your email. If it's bad news, it could throw you off your ball right when you need to be focused on something else.