Men and Facebook

I just read* a post on the blog Sex In The Digital City called:
7 Ways Facebook Can Show That He's Just Not Into You.  Among these,

If he doesn’t comment back to you when you post cute and witty comments and responses on his wall or status updates – HE IS JUST NOT THAT INTO YOU.

Really?  I'm confused.  Didn't we agree that real men don't use Facebook?


* via Gala Darling