I also keep reading about how bad is MongoDB for lots of projects. I don't think MongoDB is worthless, but from my experience I also have concerns about it. If

I also keep reading about how bad is MongoDB for lots of projects. I don't think MongoDB is worthless, but from my experience I also have concerns about it. If so many people migrate to other technologies, why is MongoDB still so popular? Have a look at http://db-engines.com/en/ranking_trend http://db-engines.com/en/ranking_trend, MongoDB has just passed PostgreSQL