The “read receipts” is a feature Facebook recently added to Messages and Chat, and that has historically been found in some private email and SMS services. Bringing them to more public social feeds is a bold step.
They’ll certainly simplify coordination in Groups and remove the need for “did you see that?” messages. But will read receipts come to the news feed? Some users might find that very creepy.
First, here’s how they work in Groups. Whenever someone publishes an update, as soon as at least one person sees it a checkmark and a count of the total number of impressions will be displayed.
Any user, group member, or admin with permission to see the post can then hover on the count to see a drop-down list of the names of everyone who has seen the post. You can see these counts and lists from web or mobile. Facebook will note “Seen by everyone” in that case so you know if you’ve reached your whole squad. This is quite a useful feature for Groups. By referencing Reads vs Likes, you’ll get a better sense of what content resonates with your Group. It keeps everyone
