To be honest, I was going to poop on you referring to HN as social media, but after looking at a lot of websites’ definitions of the term you’re right. It looks like pretty much anything where people post links or discuss things could be considered social media, which goes far beyond what I thought it was.
It really means nothing, websites with guest books count. I think people confuse it with "social network" which also has a weird vague definition but it's a little tighter.
I mean, does this _really_ count as being social? Even by nerd standards?