Holy crap, did I just get an admin-level password delivered to my e-mail account!?! Am I being forced to send every user’s password in cleartext over the Internet by the simple act of creating an account? Is it just me, or is this a MAJOR PROBLEM?
It isn’t the smartest thing to do. However, it’s not the nightmare that you make it out to be. Just simply delete it or securely overwrite the email file if you are paranoid.
For many panel functions, such as one-click installs, that’s the only way to get a password to you.