I think it comes down to what was said already... the entire campus is a landmark and the individual buildings are POIs. Waze will be adding points of interest, so we should not promote adding landmarks for places that will be POIs. That just means a lot of editing to remove all of those later. Also, as pointed out, names will tend to float around so they don't overlap. I have seen the current road name appear on another road because of this and that can cause people to make incorrect turns.
And until Waze provide the option of using it for walking/biking, we shouldn't be promoting anything that makes people think it's fine to use Waze when you aren't driving as that just messes up speed data and generates MPs. If you're providing a lot of landmarks for things you have to walk to, then you're promoting using it while walking and that just doesn't sound like a good idea to me. I already see GPS marks throughout parks and down rivers and across lakes. Thankfully most of those aren't near enough to roads to matter, but that isn't really what Waze is for. At least, not currently.
Michigan - Northern LP.
Waze running on Samsung Galaxy S3.