Yes, making it more difficult is the first action to take. Before protecting the windows at home, you just close the door, right ? Second, its a kind of indication that you do not want a picture to be copied. When it is easy to do, people can pretend they thought it was permitted because it was simple. When you make it a bit more difficult, the guy who does it is probably aware that he is violating the rules somewhere.

Generaly speaking, I would like the image module remain simple, but enriched with options like this (another very much wanted option is the imagelink).

Cheers,

Benoit