A thread over in the WebmasterWorld Supporters forum discusses how those nasty scraper sites can actually be helpful. In fact, I have always enjoyed, in one sense, finding content I write on a dozen scraper sites with the links I embedded in them pointing to my sites. It is a very quick and easy way to build backlinks. One thing I do often, but which I will start doing less, is conduct several feedster searches on variations of this site's name. Every day, I find many scraper sites come up, simply pulling the content from this site. But a good percentage of those sites not only decide to share my content with their readers, they also provide links back to the site without knowing or caring.
Some elementary math...
5 articles per day 2 links within each article on average 20 scraper sites taking the articles = 200 new links per day.
Of course those links are of "bad quality" but can you blame me for those links? Welcome to the new link building game, not really new, but you know what I mean.