Facebook Lies
Netflix also does this. I unsubscribed and many months later subscribed again only to find that all my everything was exactly the same. They never deleted my account.<p>With regard to Facebook, not exactly the same thing, but in August, I tweeted that I haven't logged in to Facebook in over a month. The next day, I got an email from Facebook asking if I'm having trouble logging in to Facebook. I never gave Facebook my Twitter account.  
<a href="https://twitter.com/AmrEldib/status/899423898139148289" rel="nofollow">https://twitter.com/AmrEldib/status/899423898139148289</a>