I sell Christopher Radko ornaments (actually, this is my last Christmas to do so and I am done with ebay). Anyway, I take the time to get the best shot of the ornament, depending on the ornament, this can take some time. When I saw that someone copied my photo for their auction, it did pi** me off! I took the time to make the best photo, and the other person just copied it. Some widgets I guess it would not be that big of deal, but others, it is, at least to me!
The idea that you have to opt out is not right either. If I had not gone to that other site (powersellers unite), I would not have known about it. Some may not care, but others might, and I am hoping that they at least know about it.