Well, this is an interesting turn of events.

[Screenshot of an email from Goodreads. It reads:


Hi Ridley,
We are contacting you to let you know we are working on retrieving the content that was deleted from your account on September 20.   We’re very sorry about how that was handled.   In retrospect, we should have notified you and provided you with a copy of your content when we deleted the reviews/shelves.  
We’ve discussed this in more detail with our engineers, and while the reviews have been completely deleted from the database, it turns out we can retrieve the content through back-up servers.  We will email it to you for your personal records as soon as the import completes in a week or two.  Please note though, the content that violated our guidelines cannot be re-posted on Goodreads.
The Goodreads Team]