You can make the forums "postable" for the "approved" list of members, just set it in forum details.
You can also set the forum moderators to recieve an email notice everytime someone posts.
You can censor out words that might get you in trouble.
A little stricter, you can set the forums to private and only allow certain members to even view the threads.
This is available in the base code, I am not sure about actual moderation of posts.
