I couldn't find a point in the article where it explained why it censored 'fuck' in not only the title, but everywhere in the article body. It's not particularly compelling evidence that given advice works.

Say 'fuck' or don't say it. Don't censor it - you come off as weak-willed to everyone, because either you're too weak to actually say it, or you don't have the wherewithal to find one of the plethora of other ways to give the same opinion.