...temptation...to...go...meta... Oh, what the hell.
I thought this reader poll at Daily Kos was fairly interesting. A significant (not a majority or most, but significant) number of respondents basically read the Daily Kos and not much else. Their view of blogging is Kos-centric. That is, it isn't really about liberal blogs generally it's all about the Home of the Great Orange Satan.
I'll avoid the temptation to go deeply into this, but I think a lot of the social dynamic that plays out there and elsewhere can be explained in part by this. Us outsiders see Kos as one blog among many, if a very highly trafficked blog, and his voice one among many many many voices on the blog (the other front pagers, the prominence of the recommended diaries, etc...). Some insiders and former insiders see it as the center of the universe.