Knowing that while Sunset Highway is technically Northwest and Southwest by Portland standards (so it's not absolutely incorrect), yet, ODOT doesn't call Sunset Highway by either quadrant where no addresses front Sunset Highway, nor does any commercially available data or ODOT data set, I added "Northwest" and "Southwest" to that highway, after long suspecting Google was wholesale copying OSM based on prior, more subtle, detail edits I had made to OSM in the western Oregon and eastern Oklahoma areas (and thus, all of OSM) for months going on years. Since Google picked up the "NW/SW" gotcha on Sunset Highway, to me, this removes all doubt.
Does OSM actually enforce it's license and copyright? If so, how do we get this ball rolling? I'm /not/ going to work for Google for free if they're not going to provide attribution.