Whatsapp's purchase by Facebook causes the loss of privacy

Wow, what the fuck was Facebook thinking like that? Last time, there may be a new feature that tracks your mouse input or whatever on Facebook website and we didn't know if there was a way to turn that off. Now, it looks like Whatsapp and their customers are worried about the loss of privacy in their conversation if the company is bought by Facebook. Also, recently, Whatsapp had the plans to encrypt their service with better security than ever but things are likely to backfire when the company is going to be purchased by Facebook. Based on the previous news about Whatsapp, perhaps, Microsoft can buy Whatsapp for the sake of planned privacy protection extension but what is the point when Microsoft already has Skype. What are people going to use Whatsapp by then?