I wonder how much tier 2 backlinks matter? There was a website that i have been working on for a few months. It made it to bottom of page 2 and got stuck there. No matter how many blog comments I did, it would not move. Then, I made a blog comment on a page that has a lot of backlinks. I guess people found this page informative and linked to it. As soon as it got indexed, my site moved to middle of page 2. this could be a coincidence because there is that huge update going on and all sites are fluctuating. or it could be because the backlink is highly powerful. What do you think? should I focus on getting tier 2 links? is it better to get 10 backlinks from 10 blog comments that have no tier 2, or 1 backlink from a blog comment that has a lot of tier 2?