I'm using it to communicate with my relatives on Mars. Seems some strange space ships have appeared recently, causing quite a stir.
The purpose of the software is to serve me. So far, it hasn't served me anything, even though I placed my order some weeks ago. I don't think that WordPress has much of a future in the service industry.
I've heard that some people are actually using WordPress to publish stories, share photo galleries, give opinions, and promote their own causes. Other people create software and things and use WordPress as a tool for getting the word out about their work.
One guy here likes to take WP to the Opera, and he keeps waxing poetically about Opera, but nobody can figure out exactly what he's talking about. I suppose people are attracted to the standards-compliance of the code, and the simple beauty and elegance of a robust, highly-customizable piece of free software.
WordPress was nominated for 17 Academy Awards, 13 Golden Globe awards, and won the prestigious Pouce Coupé Grand Prix for allowing Canadians to use the software.
Other than that, I can't think of anything else.
You can get some information from the ABOUT section of this forum as well.