If the context is clear enough the change is transformative, isn't it? We can tell the difference between a propaganda site and a professor making class material in good faith or an artist making a painting. Would anyone have a problem with that?
On Saturday 16 May 2015, rysiek wrote: > I believe this distinction is artificial. Any text can be used in any > context, and indeed often is. A "work of opinion" can become a "work of > art" or "educational material" by simply changig the context it is > accessed/experienced in.