FWIW, that isn't a "meme" I've ever heard or read. And if you did encounter it, I can't imagine why you'd find it scary rather than just silly.
I wouldn't join Facebook if you paid me. (Well, maybe if you paid me a LOT...) << This is what I find scary about the whole thing: people think one HAS TO be on FB! Now where in the heck did that meme come from?! >>