OK, I have created a new group called, "Newbies".
Posts and topics created by Newbies must use CAPTCHA, and their posts must be approved by a Moderator before they will be posted.
After five successful posts, Newbies become regular Users.
I'm going to create a new account to test this, and make sure I did it right. :-)
In my walk in the martial way, my hope is that as long as I live, I will always be a beginner.