Because in 2006 “Daily Kos put itself totally in the service of Lamont.” And still Liebermann not just won but won decisively . So, Liebermann exposed lack of influence of daily kos on normal people . Liebermann proved that daily kos is overrated politically or at least he proved that you can deal against daily kos successfully. Who knows may be if daily kos did not help Lamont in 2006 Lamont would win???