Sorry hit the submut button some how from the keyboard.
At the moment the only way to do this is to create a new usergroup, which has no posting rights to a certain forum, and move the member into it. Sadly this does not work too well, and gives the member other posting issues.
Sites need powerful banning options, whether these are time based (sin bin) or banning from parts of sites (maybe the good bits) for a certain time. Outright banning doesn't always work for regular posters who overstep the mark at times and upset others, after a pint or three.
