[rukshn]

Well the site I set up using this code, I created a Twitter app that didn't ask for permission to Tweet because I only need it to login the user.

What do you mean in your site the email is OPTIONAL? How can user reset their password if they forget their password? IF a user sign up using their email then they have to confirm it as well which makes the user to log in to his email.

Also users have one less password to remember if they use Facebook or Twitter sign in?

What if the site needs a profile picture for user profile? Then the signup process takes longer time and users have to fill a larger form.

I'm not saying I'm totally in for Social signups, but what alternative do we have?

[negativeview]

I honestly haven't had anyone needing to reset their password yet. In my particular case it's not really the end of the world if someone gets locked out, but I should probably think what I'd do in that case...

Let's be real. Most users reuse their password for everything anyway. Those that don't likely use a password manager of some sort.

I doubt that any site needs a profile picture. Even Twitter gives you a default if you don't want to set it.

The alternative we have is what we did before social was a thing. The Internet existed before Twitter. The very site we're on doesn't require a social pairing to sign up for it!