The dashboard is useful, and it can be a good thing (space saver) to have detailed information minimised for each activity type.

But it would be really useful to indicate clearly (with an arrow, like near the profil photo) that it's clickable, to access details of all activities. Because nothing indicates that (it's clickable), and there's a great risk that lot of people risk to miss it

Example : "There are new forum posts" (also visible on moodle.org's dashboard) should be followed by an arrow...