blogs

Is it just me or do some blogs disappear before their time from the 'newstuff' page. You know, the page you get when you click 'more' under the recent blogs on the front page so you can look at older ones than the newest seven? Are people deleting their own blogs or do they get shuffled off before their time some how? I have noticed this happening to a number of different blogs in the past. Is it just me? am I going crazy?