> A social media site, for example, could query the registry and decide to render a "credibility badge" when displaying links from a news organization that is w

> A social media site, for example, could query the registry and decide to render a "credibility badge" when displaying links from a news organization that is whitelisted. Yes, the key word is "decide". To use your "credibility badge" example, an organization could ostensibly behave like they accurately respect the registry while also surreptitiously ignoring the registry in situations that suit them. You might say, "well those organizations will develop a reputation for dishonesty", which might be true if they get caught, but also isn't at all different from the status quo today where selective reporting and partisan bias are bemoaned loudly and often by every side regarding every issue.