I'm considering using subb.seo's blog comment service from the marketplace. Everything looks really good, except the comments are removed 3-4 weeks after being posted. How exactly will this effect my rank and the juice I gain from these comments? The service has a lot of great reviews. I asked the owner if removing the comments with my links would affect my rank and I was told no. I'm not sure if I entirely believe that, can anyone please clarify this for me? I'm not sure if it's worth paying for something that will be removed within a month.