I am starting to get annoyed with the sites that use the SO data dumps because they are polluting the search results from search engines. It does me no good when I click on some result and it's just the same SO question and answer I read on stackoverflow.com seconds ago. What bugs me is the title of the listing was different which suggests to me I will looking at something different. Some sites do use the same question title , which is good.
Now I have to scan the domain names from the listings and avoid the sites which are basically copies of SO. Some of these sites rank high up in the results. I am not sure why unless because they have indirect affiliations with SO.
My question: Do these sites harm SO when visitors visit these sites as their primary destination for Q&A thus robbing SO from possible ad revenue?