Male? Female? Does it Matter?

I saw this over at Emerging Women, pretty funny if you ask me.

My blog is guessed as this:

We think http://chaoticadventuresofalex.blogspot.com is written by a woman (84%).

Revision Spiral is guessed as this:

We think http://revisionspiral.blog-city.com is written by a man (66%).

Midgebop this: 

We think http://midgebop.blog-city.com is written by a man(85%).

What do you think?