First, I must say that this is some awesome tech. Though, I think people should not be sharing images that would require them to use a tech like this. Moreover, if this is applied to display sensitive information then the person who intends to steal it will not be dithered by something like this. They would certainly look at means to circumvent it. It's like limiting people to right click and save an image or copy some text. Those who want to do it, can always grab the source code and load images directly from their links or copy text from the source code.
