Earlier quoted context omitted.
I find the "wisdom of crowds" vs. groupthink thing really interesting. Wisdom of crowds is definitely a thing but under fairly narrow conditions that I've never seen rigorously defined although I think people have some sense for it. When it works it tends to work really well (e.g. http://bitmason.blogspot.com/2012/04/crowdsourcing-predictio... ) but it's not very generalizable. ADDED: To your example, I'm guessing th…
Have you read "The Wisdom of Crowds" by James Surowiecki? The book is focused on just the question of what conditions seem to be beneficial/detrimental to sourcing the "wisdom" from crowds.
This "researcher" is attempting to go deeper and quantify it, maybe (I suspect) as a way of devaluing individual thinking.