Why YSK: It makes viewing images fast and easy, with no clicks.
I got used to this on the site that shall not be named, sometimes I don’t want to open the whole image or post. With the addon if I hover over the image button that would expand the image, it will show the image full size for as long as I hover over it, no clicking needed, this works with gifs as well.
Too bad this doesn’t mark the post as “read”.