A lot of people don’t copy images they write about to their own blogs. adamw got in trouble with his hoster, because one image consumed a lot of bandwith.
Read on, what happened to the bandwith thieves.
BTW the most popular image from my blog is this one: 
It’s on the first page if you google for “last” at google images. Luckily my ADSL line is able to cope with the traffic.