Your comment presupposes market failures aren't a thing -- they are, ergo, your reasoning doesn't stand up to scrutiny. Further, even if that wasn't the case,

Your comment presupposes market failures aren't a thing -- they are, ergo, your reasoning doesn't stand up to scrutiny. Further, even if that wasn't the case, advertising what's wrong with Facebook is a valid way to try and make competitors more viable: by writing critical articles, people without the technical skills to make a new Facebook change the market conditions, making it easier for a Facebook competitor to become viable. So they're doing exactly what you suggest -- using their labor to increase the chances of success for an alternative. Free markets at work! tl;dr: Your suggestion is wrong if you either do or don't believe free markets are the solution.