Though CCBY or CCBYND (etc) works are ALSO copyrighted, yes? And I do think, practically speaking, that something with just a copyright and no CC license is indeed less shareable, practically speaking (it takes time and resources to track down permissions, which may or may not be given of course). I will say that I am so appreciative when people CC-license their articles, since I often republish them in course-specific open textbooks that I produce for and with students. I think fair use protects a lot of excerpting/quoting, but when I use longer chunks, I am grateful especially for a CCBY that would let me remix significant excerpts with other texts. But mostly I depending on the open license to make simple republishing easier for course materials. But I have thought about what the ND actually does for text– not as clear as with photos, for example. Can I take a 100-page CCBYND text and republish 50 consecutive pages of it without edits or revisions? Is that excerpting a derivative? I generally have been leaning toward yes, and only reprinting ND stuff in their entirety, unless I am just using a small snippet covered under fair use quoting… Would love to learn more about this from legal minds who work with open licenses…so interesting to me.