I dunno where that stupid post came from, but there is no such thing as the "Orphan Works Copyright Act."
Check the US Congressional docket. I'll wait.
See? Not there. Because it doesn't exist.
There's a recommendation the Copyright Office is considering making, based on an existing law for a five-year pilot program. They're taking comments on it. Read the link above.
But the sensationalism is wrong, and Tumblr isn't helping. Stop reblogging it.