In SEO as in life, if your success depends on gaming the system, you will only be successful until the system changes.
This isn't the case today for google.co.uk
[1] http://searchengineland.com/eu-antitrust-chief-google-divert...
That's Google's problem in the eternal arms race of search. Google identifies a property that good content has (inbound links, keywords in the url, age of domain), which improves the rankings for a while until the spammers figure it out and morph their content to match. And then we're left in the wasteland that everybody has to do SEO just to keep up with the junk peddlers.