I just came across a question on Super User I would have liked to close as spam. But looking at the resons for a close vote ...
... I noticed that "spam" was missing from that list. Along with others such as "blatantly offensive". I realize that the different sites need a few different reasons (NPR doesn't really make sense on SU) but leaving out reasons unrelated to a specific site? Or is there no spam on SU by definition?