I voted "no".
Would it not be a requirement to "get banned" to post in the particular forum.
My thought it just might encourage those to commit violations just to be a "member".
The best way to deal with those who are banned is to allow for redemption. Allow them to come back after an appropriate time frame. Maybe (1) month for the first time. (3) months for the second time, etc, etc.
A cooling off period will allow them to think about how valuable it is to be a productive member of an active forum.
just my .02 tho!
izopod