It's a tricky one. As a product owner there are massive benefits to having Facebook accounts over your own login system. I don't like it either but being able

It's a tricky one. As a product owner there are massive benefits to having Facebook accounts over your own login system. I don't like it either but being able to tap into friend networks & social activity streams is really useful: http://blog.intercom.io/designing-for-viral-distribution/ http://blog.intercom.io/designing-for-viral-distribution/ http://blog.intercom.io/measuring-viral-distribution/ http://blog.intercom.io/measuring-viral-distribution/ Spotify is the poster child of the sort of success that it brings, pretty much every interaction (play, fave, playlist etc) is streamed to FB constantly spreading the word about Spotify. Not saying it's "cool" , just that it's a very sensible thing for a business owner to shoot for. Des