I am working on a project where the premise is demonstrate Collector for ArcGIS and the Operations Dashboard using just ArcGIS Online. While it is possible to put together a good demonstration this way, if you were allowed to filter by the last edit for all users, this would give a better visual display on the dashboard. At the moment, in order to have a legend with unique symbols for the different editors, a point is recorded on the webmap every 30 seconds for example. This makes the map look cluttered. A better display would not to have these points recorded but just display the last location of the collectors.
Current functionality:
Dashboard display:
The only way for this to be achieved is by using the Geovevent Processor but this functionality could easily be achieved in ArcGIS Online or just in the Operations Dashboard.