The context here is NASA moving slowly and the possibility of SpaceX launching without their involvement. Can you think of a single customer for that? Try to get Russian permission to got to the Russian side of the station without NASA involvement or just hang out in the Dragon until you get tired of using diapers?
Such as visiting a Bigelow Aerospace inflatable space station? They have a demo in orbit, an ISS module in the pipeline, and a manifested launch of a bigger unit on the SpaceX manifest. I thought this was pretty well known, guess I was wrong!
I am well aware of Bogelow. When do you think they will have their first human occupied station? I will bet you any sum that it is after NASA astronauts take a ride on SpaceX. Yes other customers for human spaceflight will exist, but right now it's just NASA.
If SpaceX can get a manned flight up then I think the customers and use-cases will appear.
Even if it is just a company catering to customers who want to go to space for an orbit or two without actually docking with anything.