Short post by Author and technology journalist Josh Constine who specializes in deep analysis of social products, explaining about facebook social graph. It’s spent nine years getting you to confirm who you know, and apparently it’s sick of handing over your friend list to competitors. This week it cut off both Twitter’s new photo app Vine and messaging app Voxer from Find Friends, Facebook’s API that lets you connect with Facebook friends on other apps. But this could backfire.