You have stated this twice, but the reason why this should invoke worry seems to have been left as an exercise to the reader. Perhaps there is some sort of underlying assumption you make about someone pimping their SO score that I am not making?
Help me understand why this should worry me. There are plenty of good questions and good discussion that I've seen on SO, and the reputation people have earned has seem more often deserved than not. I don't think a good SO reputation deserving quite the heated bandwagon snarking this article produced.