Well, according to Wikipedia he describes himself as that-an arm chair Media watcher for 20 years-As he says himself on his side, evaluating media Bias is not an exact science.
It?s kind of like WAR in baseball-I think there are three different organizations who quantify it and they?re not identical-but you know more about than I do.
What I like about him is I looked at A LOT of media a that I?m familiar with, and he and I are pretty close to Eye 2 Eye on all of them.
I guess I?m an armchair media watcher myself, I don?t know his credentials but I myself am an academic with a Masters Degree efrom the Annenberg School for Communications and Journalism at the University of Southern California and did research on media bias on my way to earning that degree, so as an armchair media watcher I do have some sheep skin with letters to go along with that.
You are probably familiar with Malcolm Gladwell and his nonfiction sociological study Blink, in which Gladwell outlines his theory of ?thin slicing,? in which people in Some kind of decision making pursuit use a very limited narrow selections From available data Very effectively to make accurate analysis of an effective course of action.
So maybe this dude is very good at thin slicing media bias.
