The fact is, as said before: if you upload your pictures anywhere on the web, be it this site or any other, you give others the chance to use them for whatever they want and you give away control over your pictures.
If you have a lawyer at hand, you can sue them (if you find out who really is behind it and if that someone lives in your country - otherwise you can forget it in the first place).
There are sites which try to prevent deep links, disable right-click, and so on. There is a simple workaround for all of this (right-click disabled -> install NoScript and forget about it for example).
Anyone has to make up his or her mind about that before uploading - that's it.
I'm still not sure whether I want this, so of my 10000+ photos only a few are found here as a test.
Best regards,
Michael.