"Any links intended to manipulate PageRank or a site's ranking in Google search results may be considered part of a link scheme and a violation of Google’s Webmaster Guidelines."
It means if you are intentionally trying to raise your websites PageRank by smartly using tailored anchor texts in the content on article or content posting websites, blog comments, guest blog posts, press releases, paid linking schemes etc. then definitely it is going to be considered violation of Google Webmaster Guidelines and have a negative impact on your website's position in Google SERPs.