> In fact, a footer is not simply an element that is placed on the bottom of a page. It also has to be recurrent in order to be a footer.
To be precise, it has to *have the potential* to recur: a footer on a one-page document doesn't recur, but it's still a footer.
Yes, that's more or less what I wrote later.
As I see it, the problem here is that the documentation isn't clear that "copyright" is simply a property that happens to be "pre-defined", in the sense that it's referenced somewhere [specifically titling-init.ly > oddFooterMarkup] in the standard distro. It could just as easily been called 'kieren' or anything else.
Put another way: The copyright property isn't a footer, nor is it coupled with the footer in any way *except* that the default titling includes it on the first page [only].
This behavior is a bit ambiguous, IMHO. I still prefer to have these fields totally decoupled. I think it's reasonable that the copyright appears at the bottom, as default, but I don't understand the choice to couple it to the footer of the first page.