Is it not clear at this point that the real issue is how lacking the term "social media" even is? We have people here arguing that BBSs were social media, it will not be long until email is considered social media.

At this point it's a vague term meaning "a place where you talk to another person online" and nothing more than that.

I'm solidly of the opinion especially after seeing so many arguments of this form on HN that the whole world has accidentally forgotten the term "social network" at some point, because "social media" means nothing.