While it isn’t very mature yet, this is a promising tool for all who that are unaware that smartphone cameras can zoom.
What I mean by “mature,” is that some of the editing tools aren’t available if you use a portrait photo.
This is how it works.
If this cropping tool is available on mobile, it might actually make up for the crappy “Show More Comments” button.
Edit - It does work on mobile.
Since there are often large portions of cellphone photographs that are not worth sharing*, this this could be a great tool for some of us.
*like dashboards, sky, and parking lots.