Liberalism/socialism is really cultural Marxism - an ideology. There was a very instructive essay about this posted (somewhere) yesterday. They use Political Correctness to gain and keep power. Any argument or position stated contrary to their "beliefs" becomes "unspeakable" because it is "hurtful" to some group or other. They cannot win in the world of discussion, so they use word/thought control to dominate.
I would bet that this WP author is very young and has been very insulated from exposure to any conservative conversation or opinion. How he, as a person who makes a living by writing, can brag about being ignorant of blogs, is illustrative of the liberal mindset. They do not search for knowledge, because they might be exposed to something that "offends" their sense of what is "truth".
From the University of Florida College of Journalism and Communications:
http://www.jou.ufl.edu/Pubs/communigator/Archives/S99/pages/alumni/alumni4.htm
Other College graduates at the Post are Robert Barnes, JM 1977, the current metropolitan editor; Cheney Gazzam Baltz, JM 1989, an assistant news editor, and David Finkel, TEL 1977, staff writer.
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I was very wrong about this writer's age. Why is he just a staff writer almost 30 years after his graduation?