The box might not have been checked for a minute, but it is now. What displays now is a single row of likes no matter how many likes the post has. The count of likes is no longer visible, but if I hover the cursor over the likes button, the total appears. Having all the likes visible is valuable because it allow me to track down those bloggers.
The number of likes no longer appears in the posts page:
https://ronscubadiver.wordpress.com/wp-admin/edit.php
That information was valuable because it allowed me a quick comparison of all posts.
I can see how using an abbreviated display on the front page would be helpful because it cuts the page loading time, especially for those with many likes on their front page. However, I really like the old way of doing it on posts. What I am seeing must be the test. Hopefully, this will turn out well. In the two years I have been here the improvements for displaying photography have been massive.