ken_b - 6:03 pm on Nov 28, 2011 (gmt 0)

Is there any benefit at all in just leaving it alone and allowing my URL to remain in their code?

I might have missed it, but do you place your site name visibly on the images? If you don't block them and they don't give you an obvious clickable link, the domain name on the image at least lets prople know where it came from.
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