The idea that folks think they can blog and nobody is listening is ludicrous. It can cost you your job and cost you your home. And if you have committed a crime, and you admit it on your blog, it can cost you your freedom.
People writing in weblogs need to understand that their content is being syndicated (via RSS) and archived (via search engine) with incredible speed. If you want to remain obscure (for whatever reason) you should turn off your feed and learn a little bit about a file on your server call “.htaccess.”
Otherwise, don’t write at all.