Dymero - 7:00 pm on Feb 8, 2013 (gmt 0)
I don't get this. So, in your mind, paying $5 means the site is quality? What if it's stuffing keywords, over-optimizing, or has a bad backlink profile of its own?
This is paranoia. If someone is so determined to knock you down in the rankings by employing negative SEO against you, they'll probably just set up another site to do it (or hack one), rather than paying you the $5.