Originally Posted by or8ital
I think you are missing the point. Why would the site need to access my clipboard? Shady...
It allows full control of the picture (right-clicking on the pic does nothing, it's not even a JPG file to your computer, technically, just a pasted image..) and keeps others from linking the pic from other sites.
IE 7 is suspicious of anything accessing the clipboard, so it asks you now. IE 6 will do it without question.
It can be annoying at times, but often it's pretty harmless, especially when used in this context, but potentially a mischievious script could copy and see the contents of your clipboard, whatever it may be.