Koum, who is now a billionaire, at least on paper, lived on food stamps when his family first moved to the U.S. He told Wired of growing up in a communist country, where "everything you did was eavesdropped on, recorded, snitched on." That's another, more personal reason for his insistence on not collecting information about users. WhatsApp doesn't store your chats history on its servers because it doesn't need to, since it doesn't need it to target advertisements to you.
Though he's known Zuckerberg for a couple of years, the Facebook deal wasn't in the works yet when Koum spoke to Wired late last year. He brought up Facebook, Google, Apple and Yahoo as examples of "great" companies that never sold, and signaled that WhatsApp would like to stay independent.
Acton, meanwhile, expressed worry about what a bigger company would do with WhatsApp's users, to whom the company has made such an important promise of "no ads, no gimmicks, no games."
