I certainly don't know about legal rights, but I think the ethical thing is to make sure that any writings published as freely accessible should remain so forever. What would people think if an author went into every library in the world to yank out one of their books they no longer want to be seen?
I do think the author is wrong to immediately post links to archived versions of sources. At the least, he could link to both the original and archived.
I do think the author is wrong to immediately post links to archived versions of sources. At the least, he could link to both the original and archived.