Blogs and the MSM

A reader writes:

Yours is among several political blogs I read daily. A common trait among them is the interspersion of irreverence alongside the serious news YouTube videos, pop culture contests, photos of the blogger's pets, etc.

As blogs become more legitimate as a news source, I was inclined to worry that the silly posts would diminish the impact of the news. But for some reason, on your blog (and others) the reader can distinguish the irreverent and the serious. Whereas increasingly, in the MSM, the silliness is the news.