John Mueller from Google mentioned on twitter that people working to scrape your content is not a good step because that is not a sign that you will get better ranking from Google. He said that scrapers copy all types of content without looking at the quality, and thus, it is not a really a useful signal. The person who asked the question about scrapers basically wanted to know that if other people think that your site’s content is good enough for scrapping, maybe Google would see that as a signal too. John put up the point that the scrappers are not biased towards quality in the content.
Forum discussion at Twitter.