[ajanuary]

There are lots of people for who name and gender are hot topics.

And with the "Like" buttons you /are/ forced to share your browsing history (no, being able to circumnavigate it by blocking it doesn't count)

[Karunamon]

..And if it's that much of a hot topic for you, you don't sign up. Or use fake info. Who's going to know, as long as your name isn't Clark Kent with a picture of Superman?

Also, singling out Facebook for what every advertiser cookie has done since the mid 90's seems a bit silly.