One of our students seems to have found a loophole. We have the ability to create discussions disabled in the class, which should force them to use "reply" to respond in the proper graded forum, yet if a student clicks on PEOPLE, then clicks "visit" in their group and clicks the DISCUSSION item there, they can then create a forum and post there (where no one is likely to see it).
That whole "Group" area is very confusing to me, since you get a similar (but not the same!) menu along the left--kind of bizarre to create an alternative reality with no clear indication beyond the breadcrumbs along the top (and the slightly different menu) that you're not in where you used to be...and there's not a "exit" button to be seen! It took me a while to learn to get back to the real world using the breadcrumbs.