Visiting by accident, the human recommendations blog of the Marion (Indiana) Publique Library, I noticed something actually unique: A total lack of datestamps.
I cannot find anything on the index page or the individual posts to show when they were written or publisht. The URIs are … found it!!
If you clique on the individual images of books, then it says when they were “published”, which means uploaded to the server.
Sadly, the blog hasn’t been updated in almost 2 years. Their idea of not making it easy to see the date makes it hard for an immediate visitor to know if it is all out of date, hence less immediately rejection-worthy. As far as I know this is unique to them.