I also like this idea, but not for competitive reasons. I write a gossip newspaper for Ravenclaw (.de) and I want the people we write about to be active (If they weren't, they won't read the text about them and we need not have written about them at all).

For example, if we wanted to write, that two second years got lost in the forbidden forest, I would use the filters "Ravenclaw" and "Second Year" on the marauder's map and then there would be plenty of Ravenclaws to write about. It would be so much easier if I could sort the results of my search by level. Then I would see instantly who is active and who isn't. 

Join our Chess Club at WoP.de :)