[dheera]

I guess it depends on the person. For example, I release all my photography as CC-BY-SA. So I'm okay with anyone either (a) using my watermarked images as-is, without needing to write a credit separately, since the watermark is effectively an attribution OR (b) using my unwatermarked images for whatever CC-BY-SA compliant derivative works, and display attribution in some other appropriate fashion.

So I display watermarked images in the browser by default, primarily for convenient sharing without worrying about attribution, but make the unwatermarked images available for download if someone needs it for (b).

So this might actually be useful for my use case.