There is a reason that the common login process has evolved into what it is today.
While I wouldn't want to discourage trying new things, it's definitely worth it to read the other comments on this page and then decide if the convenience you'd be providing on login is more important than the prevented headaches when a user hits an edge case that is no longer covered.
My point is not to tell you "no, don't do it" because your particular site might be different enough from the usual site that this approach could work. Although I guess that is probably unlikely.
Comments
There is a reason that the common login process has evolved into what it is today.
While I wouldn't want to discourage trying new things, it's definitely worth it to read the other comments on this page and then decide if the convenience you'd be providing on login is more important than the prevented headaches when a user hits an edge case that is no longer covered.
My point is not to tell you "no, don't do it" because your particular site might be different enough from the usual site that this approach could work. Although I guess that is probably unlikely.
Here, here.
Another suggestion: if "Easy login/account creation" is a critical piece to your success, you need a new business model.
I highly doubt that's what he's saying...