I was actually pondering about this one time. Do we really need user registrations and accounts? The answer I can give you it depends on what app you're buildin

I was actually pondering about this one time. Do we really need user registrations and accounts? The answer I can give you it depends on what app you're building. I would say yes if you require your user to save some sort of content online. Giving them incentive to come back to your site. I always thought that user registration adds friction to any app. I guess it all comes down to how it's implemented and how easy it is to get user from point A to B on your app.(e.g. reddit's way of user registration comes mind) Although the implementation of OpenID should ease that restriction a bit. In short I personally like the idea of not having to register on your app. Why don't you try it? see if users like the system. Besides it's their opinion that matters anyways. Is seems like a novel way of approaching web apps these days. Hope this helps....