I'm seeing guys ranking for medium competitive terms with nothing more than PR blog comments. Of course there is no relevancy to their money site here, and there using excessive exact anchors like 70%. Just wondering, assuming I copied every single backlink they had down to a tee, but made it so my anchors were healthy; under 10% exact. Could I rank well and sustain it? Like is there any penalties for irrelevant blog comments long term as long as I get my anchors right? I typically don't delve into shitty blog comments for links, but hey its free links and I see it working for competitors for this specific niche.