Searching for his other articles Paul Marchiori is listed as working for, and recommending Imageplus of Sao Paulo. He's a marketing guy, writing articles to promote the sites and get their name out.
Hey look, Gianfranco Coppola, is the Registrant for both sites. Odd how the articles promote two sites that most of us have never heard of.
Last one "Paul is the CEO of a SEO otimizao de sites firm."
There's the answer.