That's treating the application as if it were completely stateless, and mucks with browser history. A good example of when to use state vs. a route is on a delete. If I route to a delete, for example, then it might fire again when I hit my 'back' button, which is obviously a bad idea.

Derick Bailey has a good article on it here: http://lostechies.com/derickbailey/2011/08/03/stop-using-bac...