I am sure there are some among us who have ventured into the web outside of the OpenForum. Some of those people have come across forums similar to this one, but with one horrible, horrible difference: ...

Overview: Reduce email by getting students to use the discussion board. We all enjoy excellent questions asked in class because the answer benefits all students. You can use the threaded discussion ...

The video gives an overview of how discussions forums can be used in online teaching and with groups. Note: this video is based on Moodle 3.5 though much of the explanations relate to the updated 3.9.