I was hoping that I could do this:
https://www.reddit.com/r/kindle/comm...mment/cxltoja/
Basically, side-loaded or sent to kindle books that have the ASIN identifier will be able to be updated on Goodreads via the Kindle. Goodreads has been weird lately not showing the dates on books that are manually entered on the website instead of via Kindle. The dates show on the website, but the Goodreads Sync plugin and the Library export .csv files from Goodreads don't show the manually entered read dates.