[PeanutButter]

Hello, I'm making a website and I'm wondering if it is a good idea to only let people sign up with their ******/github account.
I think it will be much safer and easier for the users and for me.

Are there any cons to it? Do some people prefer signing up with email & password?

Edit: The users I'm targeting are mainly going to be programmers, so they probably have ******/github.