Because I want my friends - who hopefully like me and think of me as an intelligent and knowledgeable fellow - to go to my profil and find out that there is more than being mainstream conservative or a socialist. To learn about Ron Paul and Ludwig von Mises. And to be aware what a great guy Ed Snowden is - in fact a hero, not an enemy of humanity.
And honestly, the more time goes by, the more I come to the conclusion that all the people you mentioned can go fuck themselves if they don't like the fact that I hate their fascist asses. More and more people are waking up anyway, so they are soon in the minority. Hell, I've read a few Edward Snowden stories on Austrian news websites, some of them fairly leftist, and all the commentators love this guy. And even on the most socialist newspapers people suddenly go berserk on Obama (who used to be some kind of Messiah to these people). Some are even calling him worse than Bush and aren't even challenged on this. I would have never dreamed about such a paradigm shift a few years ago. The state is intellectually bankrupt and people start to recognize this fact for the first time, thanks to the internet - and because this information is spread. Which is why I want to do this, also on Facebook.