Defending ones position and imposing/guilting ones position are different I think.
> Your "communicate over long distances" reasoning is just additional bunk... unless of course, you consider email social media.
Why is it bunk? Why are people so quick to assume someone's true motives for using something are false even to themselves? It's ok to say you suffer from the cognitive dissonance to recognize their intentions, but you should just assume you don't know instead of calling their reasons false.
One could consider email the precursor to modern social media, and if as a medium it offered what modern social media outlets do, it would still prevail.