One of my closest friends, Pat Lee, has a webcomic, The Fantastical Adventures of Caspian the Sea-Devil. The “about” section contains this fantastic gem on art and originality:
This comic, like all comics, consists of written and drawn elements. The written element, the story, will be somewhat guided by my hand as the author. Mostly though, it will be the result of zillions and trillions of books, movies, videogames, TV shows, albums, magazines, websites, and other comics entering my brain, being processed and compiled by the unusual factory within, and emerging the other side transformed into what you see here. On the surface it may look like I’m “writing” the comic, in the traditional sense, but I make no effort to hide the fact that I’m really just manipulating, mutating, repurposing, and reinterpreting the countless stories that have come before mine. Hopefully I can reorganize the impossibly cluttered contents of the Culture Sponge I call a brain into a finished product that is interesting, exciting, fun to read, challenging at times, will make people think, and most importantly, will trick people into thinking that these were all my ideas.
Outstanding. Webcomics, music, writing, even software applications — every creator builds on the works of others. How’s that for recognizing it upfront? (Lest anyone jump on the last line, it’s a joke!)
Now, Pat, how about dropping the “no derivatives” and switching to a Share-Alike licence, like you mentioned?