Technically voluntary, is still very much voluntary. As is using Spotify, or any other service that requires a Facebook login. I disagree with the philosophy

Technically voluntary, is still very much voluntary. As is using Spotify, or any other service that requires a Facebook login. I disagree with the philosophy that true online identity is better for all, but also disagree that Facebook should be forced to do this. People have other choices, and had other choices while Facebook was growing. People chose the 'true' identity social network long before it was the dominant player in the space. People kept choosing it before the super network effects kicked in.