If you want the longer version of why the pictures, then read the post at the other blog.
The short version is this: pictures of your house are part of the process for trying to sell your house.
Good thing I like taking pictures of my house. If only I could keep my house as clean as those photos make it appear it to be. Well, I suppose I could...if I wanted to drive myself and my family crazy. Meh. It's not that important to me.