In short, users were worried about what would happen to the privacy and anonymity they enjoyed with the service when Facebook took over.
Koun talked about his time growing up in the USSR in the 1980s and how fear that communications were being monitored led him and his mother to move the United States before stating:
Respect for your privacy is coded into our DNA, and we built WhatsApp around the goal of knowing as little about you as possible: You don’t have to give us your name and we don’t ask for your email address. We don’t know your birthday. We don’t know your home address. We don’t know where you work. We don’t know your likes, what you search for on the internet or collect your GPS location. None of that data has ever been collected and stored by WhatsApp, and we really have no plans to change that.
Koun goes on to say:
If partnering with Facebook meant that we had to change our values, we wouldn’t have done it. Instead, we are forming a partnership that would allow us to continue operating independently and autonomously. Our fundamental values and beliefs will not change. Our principles will not change. Everything that has made WhatsApp the leader in personal messaging will still be in place. Speculation to the contrary isn’t just baseless and unfounded, it’s irresponsible.
What if the concerns of its users weren’t “baseless and unfounded?”
Inside, there is a hidden setting that allows users to “Share [your] WhatsApp account information with Facebook to improve [your] Facebook experiences.”
For now, the setting is only found in an unreleased beta version and requires a bit of terminal hacking to get there. It’s also unchecked by default.
Since it’s a beta build we don’t know if this will make its way into the next update — or if the feature will be turned on by default — but just having it there seems to stand in direct opposition to WhatsApp’s stated mission.
We’ll reserve full judgement until the release and we get a look at just what data is being shared between WhatsApp and Facebook, but finding this setting is a bit troubling.