A century ago, prominent authors got a good deal of their income from public lectures. Judging by  the quote from Buckley—and my own observations–some still do. That suggests that, in a world without enforceable copyright, some authors could write books, provide them online to anyone who wanted them, and make their living selling services to their readers–public lectures, consulting services, or the like. This is not a purely conjectural possibility. Currently I provide the full text of three books and numerous articles on my web page, for free–and receive a wide range of benefits, monetary and non-monetary, by doing so.