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That's dumb, and pointless. Any image or text that is displayed on the screen will always be easily copied. There's no security in making copying an image take five clicks instead of two, it's just annoying. Not annoying because the five clicks are difficult or very time consuming, annoying because "why should I have to click 3 extra times just because someone foolishly thinks their content is being protected when it isn't". The analog hole is always there as a fallback too.

If someone wants something to be private, they shouldn't publish it. Once you put something out into the world, you should expect that people will do whatever they want with it.