For instance people come to my site and view the page which loads pictures and other things, this is a confirmed visit in my view, and not a bot. If they go to another page inside I know they sort of like my site and are looking around, give them a higher ranking. Then when they look around more, rank them higher etc... This feature could start out simple, but the config format for it should consider future improved features of this type.
I find myself constantly looking at the raw logs trying to see if the count is actually showing people or bots when the count goes higher than normal.