authenticating via social media involves a very poor risk/reward ratio. i very rarely resort to it.<p>until the [identity/trust/data] model changes, identity services sh/could do a much better job of explaining the benefits (apart from expediency) of using them as an authenticator provider, and find smarter ways to address the conversion hit.<p>but we all know that won't happen; someone will simply innovate around that broken model instead. one hopes/expects.