It seems like science snobbery. BHTV has loads of political commentary - and other non-science. It just isn't remotely like a peer-reviewed science journal.
Phil Plait pulls the plug on BHTV: http://blogs.discovermagazine.com/badastronomy/2009/09/04/bloggingheads-capo-non-grata/
I declare this Open Thread open for discussion of Less Wrong topics that have not appeared in recent posts.