For instance, perhaps you remember some amusing detail in the background of a scene and want to show everybody. Perhaps they don't believe you, and the screensh

For instance, perhaps you remember some amusing detail in the background of a scene and want to show everybody. Perhaps they don't believe you, and the screenshot lets you say "I told you so". Perhaps you want to illustrate a post, like this one which uses screenshots from TV show Psych and the titles of Pi: https://thevirtuosi.blogspot.com/2012/03/moving-pi-ctures.html https://thevirtuosi.blogspot.com/2012/03/moving-pi-ctures.ht... There's even a case where high resolution shots would be useful, to properly see little numbers written on a wall in the background.