…the open community can’t beat Facebook.

But companies using open technologies can – by building better products. Outside the echo chamber of web standards fanatics, the vast majority of web users dont care about how the web works. They care about their user experience, where their friends are, and when something goes wrong, protecting their privacy.

— Eran Hammer-Lahav: How The Open Community Can Beat Facebook

Worth a couple of reads. Remember, no matter how Open it is, it’s the product that matters to the consumer/end user. See also:

• OpenID Connect: Progress Ensues
• Why No One is Going to Succeed at Building the Not-Facebook