While I'm not interested in providing (much) help for stolen content, I'm also very much aware that some retailers sell broken books. A lot of ePubs I bought from Kobo (when I was still willing to pay them for content) are broken and needed calibre/Sigil love to have things like covers or a TOC. Kobo said they got the books that way from the publishers. I stopped paying Kobo when I realized Amazon and other retailers usually sold me the same books without issues for equal or less money
