Here's an important excerpt from his wikipedia page: tl;dr: He has been a professor of law at both Stanford and Harvard. He's not just "some guy who thinks he

Here's an important excerpt from his wikipedia page: tl;dr: He has been a professor of law at both Stanford and Harvard. He's not just "some guy who thinks he's going to stick it to the man". He is director of the Edmond J. Safra Center for Ethics at Harvard University and the Professor of Law at Harvard Law School. Previously, he was a professor of law at Stanford Law School and founder of the Center for Internet and Society. Lessig is a founding board member of Creative Commons and the founder of Rootstrikers, and is on the board of MapLight.[2] He is on the advisory boards of the Democracy Café,[3] Sunlight Foundation[4] and Americans Elect.[5] He is a former board member of the Free Software Foundation, Software Freedom Law Center and the Electronic Frontier Foundation.[6]