A lot of so-called marketing experts shall tell you that nothing generates interest as fast as a strong opinion, which is why a lot of blogs and websites do their best to rile up emotions with opinionated views and passionate statements. However, it may be that the only real goal of such sites is to promote interest, and not necessarily positive interest leading to an action (the goal). It would be hard to get someone to sign up for your newsletter if you have just antagonised them with your perspectives through a heated discussion, after all.
Most readers admit that what they prefer is content that tries to be fair to all sides even while evaluating their weaknesses and strengths. Anyone would prefer to read an acne plr product review that strives to be objective and detached in its estimation, for instance, instead of a review that just gushes and ashamedly promotes the product itself. Just remember that sincerity and justice still go a long way.