RE: Steemit Social Experiment. Same post different authors: WHAT WILL HAPPEN?

I would say that you dont even need an experiment to know the result. It would of been the same result even if you would agree with both authors to publish the exact same text at the same time.
It would of have produced the exact same result even in "traditional" social media platforms and I would of argue even in real life situation.
I share the same opinion with @alexs1320 about the lack of real people in steemit. By real people I would consider everybody who is not a blockchain expert.