If you don't want your stuff copied, don't post it.
The law only works for you if you've got the money to fight...
Well, that's true to a degree.
The first case of image theft I saw, was at a big photo sales event. It was so big, I couldn't see it all in an hour or two.
At that time, I was doing my own b&w processing and printing on personal work and occasional work related jobs. Everything else went to a small local b&w print lab a block away. One of the lab employees saw me at this event and she dragged me over to a booth where the vendor was selling some expensive stuff. He had a framed Adams' Moonrise , with no price on the work. This was years back and I think he was looking for $15K. Peggy says, look at it closely and, tell me what you think. I asked for permission to pick the work up, the owner said fine. So, I looked at it closely and saw what she meant. I put the piece down and asked what he wanted for it. He said, make me an offer.
So, we walked off, and Peggy, who is a very good b&w printer says, what do you think? I said, the grain is too fine. Looks like Kodalith. She said, exactly what i thought . This guy, likely a frame shop owner or friend to one, copied an original, and did it really, really well.
So, a year or so ago, I had a gallery print make it's way to China. I'm waiting to see the posters of the image for sale. Scanning a big print, with professional gear, will yield a very good file for lithography plates.