Are you seriously saying that if scientific papers contain parts that lets us visualize their contents interactivity human being will lose the ability to think creatively?
It seems unlikely this would be generalizable in much of a useful way. "We conjecture that this phenomenon is universal for a class of complex dynamical systems and discuss implications." the paper says, I'd like to see more on why they think it's reasonable to conjecture that.
The lack of anonymity and pseudonymity on Facebook is definitely a factor. Facebook works under the assumption that we have one unified "identity" to which we can and want to tie everything we do. In reality, we share different parts of ourselves with different people at different times.
I think that's probably a large reason along with two others:
They're more content focused. Twitter is about what people write, Instagram is about the pictures people take. Facebook is about... the network? Facebook is more muddled, and clarity is valued today.
Asymmetry. Yes, I know you can "like" things and get updates and you can join groups, but ultimately the relationship between two users on Facebook has to be agreed to by both.
I don't know if it's a difference in education systems or the individual teachers, but I didn't learn about any of those other than tangent until I entered university, and then only as a side note in a calculus text book.