So I am working with a little site trying to get my feet wet in SEO. I have been doing some manual blog commenting for backlinks and I have a question. Two of the backlinks I got are from blogs that update everyday like ten times a day and it seems that everytime they update, for some reason I get a new backlink. So every morning I wake up and there are 20 new backlinks to my site. At first I thought to myself that this is great, but now I wonder if this is going to hurt me. The sites may be content scrapers or just aggregating dup content. My question is, do you think this will hurt my chances of ranking well? If so, what can I do about it?