Personally, I'd be flattered if someone used my pics, but fair enough if you don't like it. I don't think it's theft though even then, as this artist has changed the image substantially!
What sort of half baked logic is that??? If I took your car, repainted it and added new seats, does it now become mine? Just for the sake of discussion, lets assume you have a point here. Exactly how much would a picture have to be changed before it wouldn't be considered theft? What point is there to having a copyright if all you have to do is change the image to invalidate it?
I mean if you think that everyone is going to honor your copy right statement then the internet is the wrong place to put your work .
So basically are you saying that if it is posted online then it is fair game??? We are all sort of on the honor system here. Just because others choose to violate the law, how does that now make it right? From what I am reading here, you are saying that his copyrights are meaningless because he posted his pictures online. In what medium would they be meaningful? If Chuck had published his picture in the print medium, would it be ok for someone to scan it in and change it "substantially" and republish it as their own? The fact that the person who did take and deface Chuck's image didn't claim it as his/her own only means that that person is too much of a coward to claim responsibility for what they had done, knowing full well that it was wrong.
Chuck, you don't have to explain yourself to anyone. It is those who support this theft who have a lot more explaining to do.