Damnit, damnit, damnit. I just went looking for a 10-12 months old post only to realize the blogger had deleted it from his archives. I know why he did it: He's trying to get published, and he figured out that politics, especially his rather hard-right politics, don't help you sell books.
That's great, and I can see giving up writing about politics altogether in the interests of getting published, but scrubbing the archives seems a little obsessive. He's canned the Monthly Archives links, so it's already cumbersome to sift through the old material to begin with. Besides, very few people comb archives. Especially once you fix it so they don't come up on a Google search.
I know I'm whining about something I shouldn't whine about, as I firmly believe writers should be able to do whatever they like with their writing, including destroying it, but I nonetheless really hate bloggers who do this. "Oh, that old site has nothing to do with who I am nowadays. I'm going to delete it all." What do I have to do, start saving the .html files of every post I think I might want to refer to down the road? I sometimes don't get around to drafting anything based on another person's post until MONTHS later, when something new occurs to remind me of it.
Don't be a pain in the asses of your readers like that. Leave the shit up.
About the only excuse I see for deleting it is, "It's going to get made into a book and the publisher made me take it down." But because you're publishing some other book? Not based on your blog output? Not a good reason to kill old posts. You figure maybe only 1 in 300,000 potential book buyers will care that the author of that cookbook he or she was thinking of buying once wrote a love letter to Ann Coulter last year. Food makes people forgive what they would not ordinarily forgive.