This is just an "I'm curious" question since I really don't care, but I've noticed a lot of posters with reputation have almost exactly the same number of points, including moi. 21,474,8xx seems to be very popular just now. And for me at least, the number doesn't change despite the fact that once in a while I actually receive rep.
Is this just coincidence? Or is reputation acting funny? Or perhaps it's none of my business?