Hi,
Indeed, the addresses are sometimes somewhat arbitrary. But they appear in the Avant2Go app, so I thought it might be useful to have them here as well. In the app, the address gives the user a sense of location (if not always completely accurate) and the list of the stations can be filtered by address, for example by a road name. 
Do you think it makes sense to add the addresses to OSM, too, or should I stop adding them?