Robert_Charlton - 9:03 pm on Feb 12, 2012 (gmt 0)
I build back links to the page to increase the link juice that they pass to me!
IMO, this is an extremely dangerous approach. By building links to the scraper, you're making it more likely that the scraper could outrank you for your own content.
Also, why not just build those backlinks to your own page? If the reason is that you wouldn't want the kinds of links you'd be building linking directly to you, then, chances are in the long run that the links wouldn't be helpful.
To all this, btw, I should add that, on rare occasions, I've had sites of naive good will copying my content and linking to me, thinking they were doing me a favor. In such cases, where there was attribution and it was obvious they weren't trying to be sneaky, I contacted them directly and asked that the material be taken down. Their sites were such that a backlink from them would not have been worth the effort of supplying unique content in exchange for the link.