If you were to log in, you'd be able to get more information on your fellow community member.
I have a slightly different perspective on adding a small copyright notice to each image. Yes, it could be erased; however, most people that steal images are doing so because it is easy. It's so much easier to find an image without a copyright notice than to touch up an image that has one. It's the same principle we all use when safeguarding our physical property: we take measures to protect ourselves, but they aren't perfect. I have a deadbolt on the door to my house, but it could be picked by somebody who really wanted to get in. Does that mean it doesn't serve its purpose? In general, you just have to make it hard enough for somebody to steal your stuff that it's not worth the effort. Andrew