There's no way to win this. Include social media signin, the "ZOMG PRIVACY" crowd yells at you. Don't include them, and the "ZOMG EMAIL ADDRESS" crowd yells at you.
Not directed at you specifically, but people waste more time complaining about signin options than actually going through the process. It's kind of funny.
Not directed at you specifically, but people waste more time complaining about signin options than actually going through the process. It's kind of funny.