Just think about what you are saying.
Thanks Root for your comment I couldn't have said it better myself.
This is a 60 year old man we are talking about, not a pre-pubesent kiddie. Think about your grandparents/parents, what would you think of them if they needed their posts moderated on a forum they were a member on?
Moderating each of his posts is out of the question, if he slips up after his 2 week ban he is gone for good.