This is the beginning of the Big Churn. Less top talent will want to be associated with facebook. Already even a few more privacy clueless friends family members are deleting their accounts. Adverts were always so low yeild, and fb pages 'because we need one'. Now that is all changing due to perception. The FTC, stocks falling, are further indicatuons of falling trust. And all business is built on trust.
Oh please - the overreaction from this is ridiculous. I'm buying FB call options. Facebook's network effect is extremely strong - this is also not even including their other assets (Instagram, Whatsapp, Oculus). The API access was in violation of terms of service and the ability to access data through friends via the FB graph has already been closed.
I mean I deactictivated FB long ago. So did most of my friends (from my school, from college, from my past companies etc. ) Even those who still have accounts never post anything. They don't even update their current city/companies etc.
Although I also noticed a trend of older people joining FB and being fairly active on it. But overall FB is definitely losing its appeal.
Sadly, people have ditched FB in favor of Whatsapp which belongs to FB.