There is a long and thoughtful discussion (scroll down) of Lying in Ponds on the blog Philosoraptor; here’s a part:
This brings me to a general problem about the approach of Lyinginponds.com. They only count up pro-and-anti-Democratic and pro-and-anti-Republican comments. This approach assigns to everyone a numeric score that is, of course, an abstraction. Nothing wrong with abstraction so long as you don’t forget that that’s what it is. If you forget that you are dealing with an abstraction, then you commit–I think this is right–what Whitehead called “the fallacy of mis-placed concreteness.” Well, never mind about that part. But mistaking something more abstract for something less abstract is an error, anyway. The weakness of the Lyinginponds approach (and remember, I like that site and find it helpful) is that it abstracts away from all content other than the pro- and anti- references aforementioned. That means that somebody smart, knowledgeable, and seemingly well-intentioned like Krugman gets put into (roughly) an equivalence class with people like Michael Moore and Anne Coulter. So, though this is informative, it isn’t very informative.
Although it pains me greatly to be forced to discuss baseball, I’m willing to endure the pain for the greater good. The batting average is the statistic most often used as a simple measure of hitting prowess. But by no means should it be assumed that the two players with the highest batting averages in the league are the two best overall players, because the batting average does not account for power, is only slightly affected by speed, and does not even attempt to take into account fielding or intangible assets. I believe that the batting average is a useful abstraction, even though it is not comprehensive.
I also believe that the Combined Partisanship Index is an abstraction which does a reasonable job of detecting actual extreme partisanship which goes far beyond ordinary party preference. So I believe that the recent writings of Mr. Krugman and Ms. Coulter are both extremely partisan, as clearly shown by this imperfect analysis of dozens or hundreds of columns on a multitude of topics over two years or more. But the two pundits are certainly different in other important ways, which the Lying in Ponds rankings do not attempt to address. My favorite source of information for some of these other characteristics is Spinsanity. While Paul Krugman is only rarely criticized there, Ann Coulter suffers the indignity of her own section on the Spinsanity topics page.