"In 2010 I was working on publishing "likes" in RSS feeds. I found that you could represent a "like" using ActivityStrea.ms - so if I want to like something or someone, I can just publish that like on my blog in a standards-compliant fashion. My credibility could be established by Google or DuckDuckGo or anyone by aggregating all of the likes that others had published about me." - Brian Hendrickson