One of the biggest issues that you find on eBay is that when an item you wish to sell gets popular the copy cats and the scammers come out the woodwork, particularly on high value items, and they obviously need an image to promote thier auctions...
What do they do?......
THEY COPY SOMEONE ELSES
Some people use image software to type thier user name or company name over it, but a determined copier can get round this with even the simplest of photo editing tools.
Well its time to stop them from doing so, use the above code whenever you put a picture into eBay and they will be unable to copy your images as they will only get the replacement image. As mentioned this only works for additional images added to eBay via HTML, I now use a generic company logo as my free picture on eBay for copy sensitive auctions and use the code above to then protect the item images in the listing itself.