I deleted the Facebook app from my phone a long time ago and I only use it from an incognito browser window. So that's how much I trust their reach. But I find

I deleted the Facebook app from my phone a long time ago and I only use it from an incognito browser window. So that's how much I trust their reach. But I find it a little incredulous that Facebook, in their quest to control all their users's mail would deliberately overwrite email addresses in users' contact lists. It seems like the kind of dumb plan for world domination that only a caricature of an evil villain would execute.