I'm so sorry, Stitchawl. I managed to misread your initial post and somehow stupidly assumed that you were talking about reselling ebooks.
I think that you raise two issues: the pirated p-books are obviously a copyright violation. The sale of second-hand p-books isn't. I suppose that a person has the right to sell his or her property.
You're right about the author not being recompensed for anything but the original sale.
There are precedents for a different model. Living artists can get some money every time their work is sold, via a resale tax.
In the European Union there is the Artist Resale right (Droite de Suite)
http://conventioneuropeennedesartsvi...tax-67?lang=en
http://www.independent.co.uk/news/wo...es-676515.html
In Australia it applies only to living artists:
http://www.arts.gov.au/artists/resale_royalty
In these cases the law applies only to artworks worth several thousand Euros.
One problem is that it would be very expensive to collect a few pennies in tax on a used paperback.
Libraries in the UK do note the number of times that a book is borrowed so that the author can make a claim for recompense under the Public Lending Right legislation.
If more authors had a tipjar on their websites then I would cheerfully contribute.
I've read all of Barbara Neely's detective novels with great pleasure. They're not in print, so I had to get used copies. And it would be nice to have a way of showing my appreciation in a concrete way.