Can anyone explain this whole Facebook share stuff?

[Keeping]

Well I have been told the reason facebook are selling shares is because it is failing big time! But when you guys shares the percentage you get with your share is the percentage you will make out off facebook's profits... If people don't buy them they just belong to the person who is selling their shares.... The reason the share proces are low is because people want to sell their shares before facebook goes into decline... What is happening to facebook is what happened to bebo and myspace, soon everybody in the world will be tweeting.. Personally I prefer tweeting so much more, facebook is just dull and boring!