7.2 offers several features you may find useful..
Additionally, theres post moderated forums, which requires posts be approved before shown to the public.
theres also the captcha which stops automated bots from registering and posting.
my recommendation would be to block most free isp email providers (hotmail.com, yahoo.com, etc) and try to enforce an "isp email" policy if possible.
You can also ban people from using PM's on a user by user basis.
