If you want users to be able to make anonymous posts in the forums for Community Server 2007, then simply follow these steps below in the Control Panel.
- Go to ‘Administration->Settings->Post Settings‘ and set ‘Enable Anonymous Posting‘ to ‘Yes‘.
- Go to ‘Administration->Forums->Forums‘ and click ‘Edit‘ for the forum you want to allow anonymous posting in. On the ‘Advanced‘ tab, set ‘Enable Anonymous Posting‘ to ‘Yes‘.
You should now find users are able to post without signing in or registering.