I've recently noticed via my stats noticed someone is linking my images on a forum.
I spend a long time looking and loading images to my site and I do not like it when someone links them all and uses all my bandwidth.
Even worse when someone does not even credit.
Feel free to save as many as you like just don't link.
As of now I'm adding the following to my gallery disclaimer.
"No direct linking when I find you direct linking the image will turn into a not nice graphic if after 3 days you still have not changed it then I will change it into a porn image. Don't whine about this rule if you get banned from other places because of it. It's your fault for direct linking not mine."
Read why direct linking or hot linking is wrong http://altlab.com/hotlinking.html