When you review something by picking a URL, you have to give a name to the thing you review — the title of a book, the name of a product, and so on. Before today, you had to do this in an extra step after writing a review. Now you can do it from the “New review” form using the “label” field. It will be automatically completed for you if we already know something about that URL, like so:
In future, we’ll support finding things to review by picking them from sources like Wikidata and OpenStreetMap, and may also do other things to fetch information automatically from known sites like Amazon.com. For now, this should already take a little friction out of the process.