OR....you can ask here and we'll all take a stab it declaring to be true what we feel might be the case or is definitely the case even if it's based upon our intuition and our our limited experience. Sometimes intuition is all you have, but it should never be mistaken for a good source of absolute truth. Even elvenstats.com warns that their "active/inactive" measure is just based upon comparing the scores and noting if there is growth or not over a few weeks. Which means they aren't 100% reliable. Again, though, it's the best we have.
AJ