Early adopters of any innovation likely have certain personality traits that make them able and willing to assess a new technology and learn/overcome some obstacles to use it. Maybe those traits translate into pleasant, respectful online communication?
ETA: I need to see if I still have my old grad school copy of Diffusion of Innovation. It might have some answer in there.
https://en.m.wikipedia.org/wiki/Diffusion_of_innovations
ETA1: Most everyone seems thoughtful and patient. So maybe those are early adopter traits?