It still truly amazes me that someone can find the time to use a PC, open the site, go to the book, open the new journal entry page, and then only type one word like, "found" or similar, as their journal entry.
Doesn't seem to matter what you write on the release notes about "Tell us where you found it!", you still get little or no detail.
Mind you, even the most basic journal entry (I bet we've all had the one that is just a full-stop / period "." and nothing else) is a pleasant indication that someone, somewhere is enjoying a book. ;-)