in many cases the hit ratio is influenced by ebters who take notes from one region (e.g. where they are on vacation) to another (e.g. where they live), where the probability for the notes to be re-entered is totally different. so the hit ratio of a profile depends on who entered notes there and where he/she released them again later. having a look only at the active hits could be very interesting and could make it easier to compare differents cities/regions/countries/users.