edit: Libation apps needs you to give it your amazon password and ID, it's foss and I trust it. (editing because seemed important)

Amazon allows you to download the book from Audible, but you need a code/password or something like that to read it. Libation can basically convert these encrypted files into decrypted mp3 files by getting this code from the website, I am pretty sure you can get it too. So, my question is, why aren't there more pirates pirating audiobooks? Why isn't every audiobook on audible available online for free?

I mean, many are, but why is it not more prevalent?