tm, it seems like the review system itself "tells".  Tallying the reviews was how they came up with 486 anyway.  Seems like either the system should be changed to just show the last 18 months (for example) or the guys that this bothers should not tally numbers.  Of course all one really has to do is just look at the number of pages of reviews and they get an idea.  When there are a lot of pages, it is almost impossible not to notice.  This might be one of those no perfect answer deals.