The ethos of Facebook is primarily The Happy Valley.
Gleefully, photos of grandchildren, the perfect chocolate mousse, and the royalty check from publishing that book are posted. Even in sad events such as the death of a relative, the tone is upbeat. I have yet to come across a warning not to despair.
So, it's predictable that those of you fairly new in developing an online presence would assume you have to be positive. Always.
You have been told, for example, that the way to become more visible on the all-important professional social network LinkedIn is to comment on Pulse. So, you leave two-sentence compliments on the thought leadership piece. That's even the case when the post is a blatant sales pitch or a mere link to something already published on their own commercial website. Duh.
However, that's not the way to develop new business, expand a network, have recruiters notice you or even have folks check out your LinkedIn profile.
Professional life is not The Happy Valley. More things don't work than do work. That's why Silicon Valley has made standard A/B testing. And what does work doesn't do that perfectly.
So, take some of the sunshine out of your online presence. Demonstrate that you can identify the problems or flaws in whatever. And you go on to recommend a solution. Professional success comes from problem-solving. Not random praise.