I analyse one of my competitor and realize that he built a lot of t2 site (new domain not web 2.0) and link to his money site. But among of all these t2 site, it has 32/40 which has the same ip address including c class ip block. Does this site might get penalized soon? OR actually using same IP address doesn't really matter?? I saw his money site domain age for 8 years and he has a lot of keyword ranking on top 1.