This image was the first time I've found it handy to have it installed. It's not as useful in day-to-day browsing as you might think.
Indeed, and it takes quite some memory, and it's for me the first extension ever which actually crashed at some points (I'm using Chrome with a dozen other extensions installed).
And for the first time, I got confused and thought it was text, not png (I've had Naptha installed few weeks ago).