This is actually a really good explanation between a post and a published article.
I suppose most people tend to sway towards posts rather than publication simply because articles can be rather long, and not many people (especially in the internet age) have much of an attention span to meticulously read through unless the material actually serves viable information.
Hence, the popularity of people posting tend to earn more than those who really do research and made a full fledged article (publication) especially you are relying on organic viewers, comments and upvotes.
That, I find is one of the reason tweeter and instagram was more efficient than facebook (at certain times) and wordpress; just like how Dmania took Steemit by storm for a while and Steepshot surpassed the usual Steemit platform.
Great insight still. I am going to make sure this post of your (though expired) to in the #teammalaysia resources section so that newbies can read this through.
Thank you for making time to share this with us.