Ugh, I hate titles like these.

It's not a graph? Of COURSE it's a graph. It's just a very complex one. Just because you could make many such graphs representing the same relationships doesn't mean it's not a graph.

And it's not social because you're missing someone's crush? Uh, no. It's still social, just incomplete.

A better title for this would have been "The Social Graph is incomplete and complex."