Hey, I always see PR6 blogs spammed with comments for back links making the OBL well over 100. If one was to stumble upon a PR6 with no comments and post an anchored text back link, how much weight would that have? Has anyone had any experience and did you have a noticeable rise in SERPs from that one PR6 site? Would a PR6 with inbound link lower than 10 be a big deal? I know PR6 means nothing sometimes. But I am just curious and hopefully someone can share from personal experience.